Home / 9,122.30-12,588.76-4,930.55

Finding the Fourth Proportional to 9,122.30, 12,588.76 and 4,930.55

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Solution

The fourth proportional to 9,122.30, 12,588.76 and 4,930.55 is: 6,804.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.30 : 12,588.76 = 4,930.55 : x
  2. Step 2: Convert to fraction form
    9,122.30/12,588.76 = 4,930.55/x
  3. Step 3: Cross multiply
    9,122.30x = 12,588.76 × 4,930.55
  4. Step 4: Simplify right side
    9,122.30x = 62,069,510.62
  5. Step 5: Solve for x
    x = 62,069,510.62/9,122.30
  6. Step 6: Final answer
    x = 6,804.15

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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.