Home / 8,156.29-12,220.92-7,475.35

Finding the Fourth Proportional to 8,156.29, 12,220.92 and 7,475.35

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Solution

The fourth proportional to 8,156.29, 12,220.92 and 7,475.35 is: 11,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.29 : 12,220.92 = 7,475.35 : x
  2. Step 2: Convert to fraction form
    8,156.29/12,220.92 = 7,475.35/x
  3. Step 3: Cross multiply
    8,156.29x = 12,220.92 × 7,475.35
  4. Step 4: Simplify right side
    8,156.29x = 91,355,654.32
  5. Step 5: Solve for x
    x = 91,355,654.32/8,156.29
  6. Step 6: Final answer
    x = 11,200.64

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1.5x scale

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.