Home / 11,639.29-17,445.04-8,110.18

Finding the Fourth Proportional to 11,639.29, 17,445.04 and 8,110.18

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Solution

The fourth proportional to 11,639.29, 17,445.04 and 8,110.18 is: 12,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.29 : 17,445.04 = 8,110.18 : x
  2. Step 2: Convert to fraction form
    11,639.29/17,445.04 = 8,110.18/x
  3. Step 3: Cross multiply
    11,639.29x = 17,445.04 × 8,110.18
  4. Step 4: Simplify right side
    11,639.29x = 141,482,381.03
  5. Step 5: Solve for x
    x = 141,482,381.03/11,639.29
  6. Step 6: Final answer
    x = 12,155.59

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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.