Home / 9,138.30-12,592.71-6,776.34

Finding the Fourth Proportional to 9,138.30, 12,592.71 and 6,776.34

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Solution

The fourth proportional to 9,138.30, 12,592.71 and 6,776.34 is: 9,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.30 : 12,592.71 = 6,776.34 : x
  2. Step 2: Convert to fraction form
    9,138.30/12,592.71 = 6,776.34/x
  3. Step 3: Cross multiply
    9,138.30x = 12,592.71 × 6,776.34
  4. Step 4: Simplify right side
    9,138.30x = 85,332,484.48
  5. Step 5: Solve for x
    x = 85,332,484.48/9,138.30
  6. Step 6: Final answer
    x = 9,337.89

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Half scale
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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.