Home / 13,397.68-18,486.16-7,429.04

Finding the Fourth Proportional to 13,397.68, 18,486.16 and 7,429.04

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Solution

The fourth proportional to 13,397.68, 18,486.16 and 7,429.04 is: 10,250.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.68 : 18,486.16 = 7,429.04 : x
  2. Step 2: Convert to fraction form
    13,397.68/18,486.16 = 7,429.04/x
  3. Step 3: Cross multiply
    13,397.68x = 18,486.16 × 7,429.04
  4. Step 4: Simplify right side
    13,397.68x = 137,334,422.09
  5. Step 5: Solve for x
    x = 137,334,422.09/13,397.68
  6. Step 6: Final answer
    x = 10,250.61

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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.