Home / 8,957.28-13,441.33-3,117.99

Finding the Fourth Proportional to 8,957.28, 13,441.33 and 3,117.99

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Solution

The fourth proportional to 8,957.28, 13,441.33 and 3,117.99 is: 4,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.28 : 13,441.33 = 3,117.99 : x
  2. Step 2: Convert to fraction form
    8,957.28/13,441.33 = 3,117.99/x
  3. Step 3: Cross multiply
    8,957.28x = 13,441.33 × 3,117.99
  4. Step 4: Simplify right side
    8,957.28x = 41,909,969.29
  5. Step 5: Solve for x
    x = 41,909,969.29/8,957.28
  6. Step 6: Final answer
    x = 4,678.87

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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.