Home / 8,869.28-12,244.84-7,885.20

Finding the Fourth Proportional to 8,869.28, 12,244.84 and 7,885.20

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Solution

The fourth proportional to 8,869.28, 12,244.84 and 7,885.20 is: 10,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.28 : 12,244.84 = 7,885.20 : x
  2. Step 2: Convert to fraction form
    8,869.28/12,244.84 = 7,885.20/x
  3. Step 3: Cross multiply
    8,869.28x = 12,244.84 × 7,885.20
  4. Step 4: Simplify right side
    8,869.28x = 96,553,012.37
  5. Step 5: Solve for x
    x = 96,553,012.37/8,869.28
  6. Step 6: Final answer
    x = 10,886.23

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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.