Home / 9,122.49-12,589.02-4,930.74

Finding the Fourth Proportional to 9,122.49, 12,589.02 and 4,930.74

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Solution

The fourth proportional to 9,122.49, 12,589.02 and 4,930.74 is: 6,804.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.49 : 12,589.02 = 4,930.74 : x
  2. Step 2: Convert to fraction form
    9,122.49/12,589.02 = 4,930.74/x
  3. Step 3: Cross multiply
    9,122.49x = 12,589.02 × 4,930.74
  4. Step 4: Simplify right side
    9,122.49x = 62,073,184.47
  5. Step 5: Solve for x
    x = 62,073,184.47/9,122.49
  6. Step 6: Final answer
    x = 6,804.41

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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.