Home / 13,245.04-18,278.63-7,276.92

Finding the Fourth Proportional to 13,245.04, 18,278.63 and 7,276.92

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Solution

The fourth proportional to 13,245.04, 18,278.63 and 7,276.92 is: 10,042.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.04 : 18,278.63 = 7,276.92 : x
  2. Step 2: Convert to fraction form
    13,245.04/18,278.63 = 7,276.92/x
  3. Step 3: Cross multiply
    13,245.04x = 18,278.63 × 7,276.92
  4. Step 4: Simplify right side
    13,245.04x = 133,012,128.22
  5. Step 5: Solve for x
    x = 133,012,128.22/13,245.04
  6. Step 6: Final answer
    x = 10,042.41

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Double scale
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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.