Home / 8,898.25-13,278.28-7,717.27

Finding the Fourth Proportional to 8,898.25, 13,278.28 and 7,717.27

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Solution

The fourth proportional to 8,898.25, 13,278.28 and 7,717.27 is: 11,515.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.25 : 13,278.28 = 7,717.27 : x
  2. Step 2: Convert to fraction form
    8,898.25/13,278.28 = 7,717.27/x
  3. Step 3: Cross multiply
    8,898.25x = 13,278.28 × 7,717.27
  4. Step 4: Simplify right side
    8,898.25x = 102,472,071.90
  5. Step 5: Solve for x
    x = 102,472,071.90/8,898.25
  6. Step 6: Final answer
    x = 11,515.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.