Home / 8,381.64-12,572.04-2,538.72

Finding the Fourth Proportional to 8,381.64, 12,572.04 and 2,538.72

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Solution

The fourth proportional to 8,381.64, 12,572.04 and 2,538.72 is: 3,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.64 : 12,572.04 = 2,538.72 : x
  2. Step 2: Convert to fraction form
    8,381.64/12,572.04 = 2,538.72/x
  3. Step 3: Cross multiply
    8,381.64x = 12,572.04 × 2,538.72
  4. Step 4: Simplify right side
    8,381.64x = 31,916,889.39
  5. Step 5: Solve for x
    x = 31,916,889.39/8,381.64
  6. Step 6: Final answer
    x = 3,807.95

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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.