Home / 9,006.24-12,428.16-5,280

Finding the Fourth Proportional to 9,006.24, 12,428.16 and 5,280

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Solution

The fourth proportional to 9,006.24, 12,428.16 and 5,280 is: 7,286.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,006.24 : 12,428.16 = 5,280 : x
  2. Step 2: Convert to fraction form
    9,006.24/12,428.16 = 5,280/x
  3. Step 3: Cross multiply
    9,006.24x = 12,428.16 × 5,280
  4. Step 4: Simplify right side
    9,006.24x = 65,620,684.80
  5. Step 5: Solve for x
    x = 65,620,684.80/9,006.24
  6. Step 6: Final answer
    x = 7,286.14

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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.