Home / 12,542.04-17,316.18-8,561.70

Finding the Fourth Proportional to 12,542.04, 17,316.18 and 8,561.70

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Solution

The fourth proportional to 12,542.04, 17,316.18 and 8,561.70 is: 11,820.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,542.04 : 17,316.18 = 8,561.70 : x
  2. Step 2: Convert to fraction form
    12,542.04/17,316.18 = 8,561.70/x
  3. Step 3: Cross multiply
    12,542.04x = 17,316.18 × 8,561.70
  4. Step 4: Simplify right side
    12,542.04x = 148,255,938.31
  5. Step 5: Solve for x
    x = 148,255,938.31/12,542.04
  6. Step 6: Final answer
    x = 11,820.72

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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.