Home / 10,252.79-14,149.07-5,715.75

Finding the Fourth Proportional to 10,252.79, 14,149.07 and 5,715.75

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Solution

The fourth proportional to 10,252.79, 14,149.07 and 5,715.75 is: 7,887.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,252.79 : 14,149.07 = 5,715.75 : x
  2. Step 2: Convert to fraction form
    10,252.79/14,149.07 = 5,715.75/x
  3. Step 3: Cross multiply
    10,252.79x = 14,149.07 × 5,715.75
  4. Step 4: Simplify right side
    10,252.79x = 80,872,518.27
  5. Step 5: Solve for x
    x = 80,872,518.27/10,252.79
  6. Step 6: Final answer
    x = 7,887.86

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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.