Home / 13,516.52-18,650.67-7,547.90

Finding the Fourth Proportional to 13,516.52, 18,650.67 and 7,547.90

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Solution

The fourth proportional to 13,516.52, 18,650.67 and 7,547.90 is: 10,414.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.52 : 18,650.67 = 7,547.90 : x
  2. Step 2: Convert to fraction form
    13,516.52/18,650.67 = 7,547.90/x
  3. Step 3: Cross multiply
    13,516.52x = 18,650.67 × 7,547.90
  4. Step 4: Simplify right side
    13,516.52x = 140,773,392.09
  5. Step 5: Solve for x
    x = 140,773,392.09/13,516.52
  6. Step 6: Final answer
    x = 10,414.91

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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.