Home / 8,411.28-12,616.74-2,086.08

Finding the Fourth Proportional to 8,411.28, 12,616.74 and 2,086.08

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Solution

The fourth proportional to 8,411.28, 12,616.74 and 2,086.08 is: 3,129.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.28 : 12,616.74 = 2,086.08 : x
  2. Step 2: Convert to fraction form
    8,411.28/12,616.74 = 2,086.08/x
  3. Step 3: Cross multiply
    8,411.28x = 12,616.74 × 2,086.08
  4. Step 4: Simplify right side
    8,411.28x = 26,319,528.98
  5. Step 5: Solve for x
    x = 26,319,528.98/8,411.28
  6. Step 6: Final answer
    x = 3,129.08

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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.