Home / 13,248.71-18,283.21-7,280.76

Finding the Fourth Proportional to 13,248.71, 18,283.21 and 7,280.76

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Solution

The fourth proportional to 13,248.71, 18,283.21 and 7,280.76 is: 10,047.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.71 : 18,283.21 = 7,280.76 : x
  2. Step 2: Convert to fraction form
    13,248.71/18,283.21 = 7,280.76/x
  3. Step 3: Cross multiply
    13,248.71x = 18,283.21 × 7,280.76
  4. Step 4: Simplify right side
    13,248.71x = 133,115,664.04
  5. Step 5: Solve for x
    x = 133,115,664.04/13,248.71
  6. Step 6: Final answer
    x = 10,047.44

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Double scale
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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.