Home / 13,247.04-18,281.39-7,278.92

Finding the Fourth Proportional to 13,247.04, 18,281.39 and 7,278.92

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Solution

The fourth proportional to 13,247.04, 18,281.39 and 7,278.92 is: 10,045.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.04 : 18,281.39 = 7,278.92 : x
  2. Step 2: Convert to fraction form
    13,247.04/18,281.39 = 7,278.92/x
  3. Step 3: Cross multiply
    13,247.04x = 18,281.39 × 7,278.92
  4. Step 4: Simplify right side
    13,247.04x = 133,068,775.30
  5. Step 5: Solve for x
    x = 133,068,775.30/13,247.04
  6. Step 6: Final answer
    x = 10,045.17

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Half scale
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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.