Home / 11,307.68-15,613.90-7,335.56

Finding the Fourth Proportional to 11,307.68, 15,613.90 and 7,335.56

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Solution

The fourth proportional to 11,307.68, 15,613.90 and 7,335.56 is: 10,129.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,307.68 : 15,613.90 = 7,335.56 : x
  2. Step 2: Convert to fraction form
    11,307.68/15,613.90 = 7,335.56/x
  3. Step 3: Cross multiply
    11,307.68x = 15,613.90 × 7,335.56
  4. Step 4: Simplify right side
    11,307.68x = 114,536,700.28
  5. Step 5: Solve for x
    x = 114,536,700.28/11,307.68
  6. Step 6: Final answer
    x = 10,129.11

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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.