Home / 10,938.24-15,108.48-9,613.44

Finding the Fourth Proportional to 10,938.24, 15,108.48 and 9,613.44

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Solution

The fourth proportional to 10,938.24, 15,108.48 and 9,613.44 is: 13,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.24 : 15,108.48 = 9,613.44 : x
  2. Step 2: Convert to fraction form
    10,938.24/15,108.48 = 9,613.44/x
  3. Step 3: Cross multiply
    10,938.24x = 15,108.48 × 9,613.44
  4. Step 4: Simplify right side
    10,938.24x = 145,244,465.97
  5. Step 5: Solve for x
    x = 145,244,465.97/10,938.24
  6. Step 6: Final answer
    x = 13,278.60

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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.