Home / 8,431.32-12,646.51-2,587.92

Finding the Fourth Proportional to 8,431.32, 12,646.51 and 2,587.92

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Solution

The fourth proportional to 8,431.32, 12,646.51 and 2,587.92 is: 3,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.32 : 12,646.51 = 2,587.92 : x
  2. Step 2: Convert to fraction form
    8,431.32/12,646.51 = 2,587.92/x
  3. Step 3: Cross multiply
    8,431.32x = 12,646.51 × 2,587.92
  4. Step 4: Simplify right side
    8,431.32x = 32,728,156.16
  5. Step 5: Solve for x
    x = 32,728,156.16/8,431.32
  6. Step 6: Final answer
    x = 3,881.74

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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.