Home / 15,143.73-22,715.61-5,280.63

Finding the Fourth Proportional to 15,143.73, 22,715.61 and 5,280.63

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Solution

The fourth proportional to 15,143.73, 22,715.61 and 5,280.63 is: 7,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.73 : 22,715.61 = 5,280.63 : x
  2. Step 2: Convert to fraction form
    15,143.73/22,715.61 = 5,280.63/x
  3. Step 3: Cross multiply
    15,143.73x = 22,715.61 × 5,280.63
  4. Step 4: Simplify right side
    15,143.73x = 119,952,731.63
  5. Step 5: Solve for x
    x = 119,952,731.63/15,143.73
  6. Step 6: Final answer
    x = 7,920.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.