Home / 11,417.11-15,755.29-6,381.35

Finding the Fourth Proportional to 11,417.11, 15,755.29 and 6,381.35

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Solution

The fourth proportional to 11,417.11, 15,755.29 and 6,381.35 is: 8,806.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.11 : 15,755.29 = 6,381.35 : x
  2. Step 2: Convert to fraction form
    11,417.11/15,755.29 = 6,381.35/x
  3. Step 3: Cross multiply
    11,417.11x = 15,755.29 × 6,381.35
  4. Step 4: Simplify right side
    11,417.11x = 100,539,925.11
  5. Step 5: Solve for x
    x = 100,539,925.11/11,417.11
  6. Step 6: Final answer
    x = 8,806.08

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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.