Home / 11,417.15-15,754.16-6,381.18

Finding the Fourth Proportional to 11,417.15, 15,754.16 and 6,381.18

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Solution

The fourth proportional to 11,417.15, 15,754.16 and 6,381.18 is: 8,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.15 : 15,754.16 = 6,381.18 : x
  2. Step 2: Convert to fraction form
    11,417.15/15,754.16 = 6,381.18/x
  3. Step 3: Cross multiply
    11,417.15x = 15,754.16 × 6,381.18
  4. Step 4: Simplify right side
    11,417.15x = 100,530,146.66
  5. Step 5: Solve for x
    x = 100,530,146.66/11,417.15
  6. Step 6: Final answer
    x = 8,805.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.