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Finding the Fourth Proportional to 12,354.70, 18,532.05 and 6,117.70

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Solution

The fourth proportional to 12,354.70, 18,532.05 and 6,117.70 is: 9,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.70 : 18,532.05 = 6,117.70 : x
  2. Step 2: Convert to fraction form
    12,354.70/18,532.05 = 6,117.70/x
  3. Step 3: Cross multiply
    12,354.70x = 18,532.05 × 6,117.70
  4. Step 4: Simplify right side
    12,354.70x = 113,373,522.29
  5. Step 5: Solve for x
    x = 113,373,522.29/12,354.70
  6. Step 6: Final answer
    x = 9,176.55

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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.