Home / 12,307.38-18,452.13-4,909.62

Finding the Fourth Proportional to 12,307.38, 18,452.13 and 4,909.62

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Solution

The fourth proportional to 12,307.38, 18,452.13 and 4,909.62 is: 7,360.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.38 : 18,452.13 = 4,909.62 : x
  2. Step 2: Convert to fraction form
    12,307.38/18,452.13 = 4,909.62/x
  3. Step 3: Cross multiply
    12,307.38x = 18,452.13 × 4,909.62
  4. Step 4: Simplify right side
    12,307.38x = 90,592,946.49
  5. Step 5: Solve for x
    x = 90,592,946.49/12,307.38
  6. Step 6: Final answer
    x = 7,360.86

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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.