Home / 13,251.31-18,287.02-7,586.04

Finding the Fourth Proportional to 13,251.31, 18,287.02 and 7,586.04

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Solution

The fourth proportional to 13,251.31, 18,287.02 and 7,586.04 is: 10,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.31 : 18,287.02 = 7,586.04 : x
  2. Step 2: Convert to fraction form
    13,251.31/18,287.02 = 7,586.04/x
  3. Step 3: Cross multiply
    13,251.31x = 18,287.02 × 7,586.04
  4. Step 4: Simplify right side
    13,251.31x = 138,725,973.77
  5. Step 5: Solve for x
    x = 138,725,973.77/13,251.31
  6. Step 6: Final answer
    x = 10,468.85

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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.