Home / 15,140.94-22,715.10-5,280.30

Finding the Fourth Proportional to 15,140.94, 22,715.10 and 5,280.30

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Solution

The fourth proportional to 15,140.94, 22,715.10 and 5,280.30 is: 7,921.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.94 : 22,715.10 = 5,280.30 : x
  2. Step 2: Convert to fraction form
    15,140.94/22,715.10 = 5,280.30/x
  3. Step 3: Cross multiply
    15,140.94x = 22,715.10 × 5,280.30
  4. Step 4: Simplify right side
    15,140.94x = 119,942,542.53
  5. Step 5: Solve for x
    x = 119,942,542.53/15,140.94
  6. Step 6: Final answer
    x = 7,921.74

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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.