Home / 11,613.88-17,421.02-4,688.38

Finding the Fourth Proportional to 11,613.88, 17,421.02 and 4,688.38

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Solution

The fourth proportional to 11,613.88, 17,421.02 and 4,688.38 is: 7,032.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,613.88 : 17,421.02 = 4,688.38 : x
  2. Step 2: Convert to fraction form
    11,613.88/17,421.02 = 4,688.38/x
  3. Step 3: Cross multiply
    11,613.88x = 17,421.02 × 4,688.38
  4. Step 4: Simplify right side
    11,613.88x = 81,676,251.20
  5. Step 5: Solve for x
    x = 81,676,251.20/11,613.88
  6. Step 6: Final answer
    x = 7,032.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.