Home / 11,587.08-17,381.40-5,742.12

Finding the Fourth Proportional to 11,587.08, 17,381.40 and 5,742.12

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Solution

The fourth proportional to 11,587.08, 17,381.40 and 5,742.12 is: 8,613.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587.08 : 17,381.40 = 5,742.12 : x
  2. Step 2: Convert to fraction form
    11,587.08/17,381.40 = 5,742.12/x
  3. Step 3: Cross multiply
    11,587.08x = 17,381.40 × 5,742.12
  4. Step 4: Simplify right side
    11,587.08x = 99,806,084.57
  5. Step 5: Solve for x
    x = 99,806,084.57/11,587.08
  6. Step 6: Final answer
    x = 8,613.57

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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.