Home / 8,088.16-12,134.26-6,428.55

Finding the Fourth Proportional to 8,088.16, 12,134.26 and 6,428.55

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Solution

The fourth proportional to 8,088.16, 12,134.26 and 6,428.55 is: 9,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,088.16 : 12,134.26 = 6,428.55 : x
  2. Step 2: Convert to fraction form
    8,088.16/12,134.26 = 6,428.55/x
  3. Step 3: Cross multiply
    8,088.16x = 12,134.26 × 6,428.55
  4. Step 4: Simplify right side
    8,088.16x = 78,005,675.70
  5. Step 5: Solve for x
    x = 78,005,675.70/8,088.16
  6. Step 6: Final answer
    x = 9,644.42

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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.