Home / 10,715.10-16,077.45-4,868.70

Finding the Fourth Proportional to 10,715.10, 16,077.45 and 4,868.70

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Solution

The fourth proportional to 10,715.10, 16,077.45 and 4,868.70 is: 7,305.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.10 : 16,077.45 = 4,868.70 : x
  2. Step 2: Convert to fraction form
    10,715.10/16,077.45 = 4,868.70/x
  3. Step 3: Cross multiply
    10,715.10x = 16,077.45 × 4,868.70
  4. Step 4: Simplify right side
    10,715.10x = 78,276,280.82
  5. Step 5: Solve for x
    x = 78,276,280.82/10,715.10
  6. Step 6: Final answer
    x = 7,305.23

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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.