Home / 13,397.07-18,487.87-7,429.62

Finding the Fourth Proportional to 13,397.07, 18,487.87 and 7,429.62

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Solution

The fourth proportional to 13,397.07, 18,487.87 and 7,429.62 is: 10,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.07 : 18,487.87 = 7,429.62 : x
  2. Step 2: Convert to fraction form
    13,397.07/18,487.87 = 7,429.62/x
  3. Step 3: Cross multiply
    13,397.07x = 18,487.87 × 7,429.62
  4. Step 4: Simplify right side
    13,397.07x = 137,357,848.71
  5. Step 5: Solve for x
    x = 137,357,848.71/13,397.07
  6. Step 6: Final answer
    x = 10,252.83

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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.