Home / 8,885.80-12,267.60-7,901.56

Finding the Fourth Proportional to 8,885.80, 12,267.60 and 7,901.56

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Solution

The fourth proportional to 8,885.80, 12,267.60 and 7,901.56 is: 10,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.80 : 12,267.60 = 7,901.56 : x
  2. Step 2: Convert to fraction form
    8,885.80/12,267.60 = 7,901.56/x
  3. Step 3: Cross multiply
    8,885.80x = 12,267.60 × 7,901.56
  4. Step 4: Simplify right side
    8,885.80x = 96,933,177.46
  5. Step 5: Solve for x
    x = 96,933,177.46/8,885.80
  6. Step 6: Final answer
    x = 10,908.77

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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.