Home / 12,613.52-18,925.75-6,763.30

Finding the Fourth Proportional to 12,613.52, 18,925.75 and 6,763.30

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Solution

The fourth proportional to 12,613.52, 18,925.75 and 6,763.30 is: 10,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.52 : 18,925.75 = 6,763.30 : x
  2. Step 2: Convert to fraction form
    12,613.52/18,925.75 = 6,763.30/x
  3. Step 3: Cross multiply
    12,613.52x = 18,925.75 × 6,763.30
  4. Step 4: Simplify right side
    12,613.52x = 128,000,486.11
  5. Step 5: Solve for x
    x = 128,000,486.11/12,613.52
  6. Step 6: Final answer
    x = 10,147.88

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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.