Home / 10,120.24-13,957.68-8,498.90

Finding the Fourth Proportional to 10,120.24, 13,957.68 and 8,498.90

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Solution

The fourth proportional to 10,120.24, 13,957.68 and 8,498.90 is: 11,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.24 : 13,957.68 = 8,498.90 : x
  2. Step 2: Convert to fraction form
    10,120.24/13,957.68 = 8,498.90/x
  3. Step 3: Cross multiply
    10,120.24x = 13,957.68 × 8,498.90
  4. Step 4: Simplify right side
    10,120.24x = 118,624,926.55
  5. Step 5: Solve for x
    x = 118,624,926.55/10,120.24
  6. Step 6: Final answer
    x = 11,721.55

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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.