Home / 8,431.45-12,646.71-2,588.06

Finding the Fourth Proportional to 8,431.45, 12,646.71 and 2,588.06

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Solution

The fourth proportional to 8,431.45, 12,646.71 and 2,588.06 is: 3,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.45 : 12,646.71 = 2,588.06 : x
  2. Step 2: Convert to fraction form
    8,431.45/12,646.71 = 2,588.06/x
  3. Step 3: Cross multiply
    8,431.45x = 12,646.71 × 2,588.06
  4. Step 4: Simplify right side
    8,431.45x = 32,730,444.28
  5. Step 5: Solve for x
    x = 32,730,444.28/8,431.45
  6. Step 6: Final answer
    x = 3,881.95

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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.