Home / 8,926.57-12,318.45-5,149.74

Finding the Fourth Proportional to 8,926.57, 12,318.45 and 5,149.74

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Solution

The fourth proportional to 8,926.57, 12,318.45 and 5,149.74 is: 7,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.57 : 12,318.45 = 5,149.74 : x
  2. Step 2: Convert to fraction form
    8,926.57/12,318.45 = 5,149.74/x
  3. Step 3: Cross multiply
    8,926.57x = 12,318.45 × 5,149.74
  4. Step 4: Simplify right side
    8,926.57x = 63,436,783.91
  5. Step 5: Solve for x
    x = 63,436,783.91/8,926.57
  6. Step 6: Final answer
    x = 7,106.52

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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.