Home / 9,120.52-12,586.30-4,928.76

Finding the Fourth Proportional to 9,120.52, 12,586.30 and 4,928.76

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Solution

The fourth proportional to 9,120.52, 12,586.30 and 4,928.76 is: 6,801.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.52 : 12,586.30 = 4,928.76 : x
  2. Step 2: Convert to fraction form
    9,120.52/12,586.30 = 4,928.76/x
  3. Step 3: Cross multiply
    9,120.52x = 12,586.30 × 4,928.76
  4. Step 4: Simplify right side
    9,120.52x = 62,034,851.99
  5. Step 5: Solve for x
    x = 62,034,851.99/9,120.52
  6. Step 6: Final answer
    x = 6,801.68

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Half scale
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Double 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.