Home / 10,287.87-14,197.52-6,311.17

Finding the Fourth Proportional to 10,287.87, 14,197.52 and 6,311.17

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Solution

The fourth proportional to 10,287.87, 14,197.52 and 6,311.17 is: 8,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.87 : 14,197.52 = 6,311.17 : x
  2. Step 2: Convert to fraction form
    10,287.87/14,197.52 = 6,311.17/x
  3. Step 3: Cross multiply
    10,287.87x = 14,197.52 × 6,311.17
  4. Step 4: Simplify right side
    10,287.87x = 89,602,962.30
  5. Step 5: Solve for x
    x = 89,602,962.30/10,287.87
  6. Step 6: Final answer
    x = 8,709.57

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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.