Home / 13,245.19-18,278.68-7,277.24

Finding the Fourth Proportional to 13,245.19, 18,278.68 and 7,277.24

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Solution

The fourth proportional to 13,245.19, 18,278.68 and 7,277.24 is: 10,042.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.19 : 18,278.68 = 7,277.24 : x
  2. Step 2: Convert to fraction form
    13,245.19/18,278.68 = 7,277.24/x
  3. Step 3: Cross multiply
    13,245.19x = 18,278.68 × 7,277.24
  4. Step 4: Simplify right side
    13,245.19x = 133,018,341.24
  5. Step 5: Solve for x
    x = 133,018,341.24/13,245.19
  6. Step 6: Final answer
    x = 10,042.77

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Half scale
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Double scale
Find fourth proportional to 13,246.19, 18,280.06 and 7,278.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.