Home / 11,081.86-15,294.95-6,605.90

Finding the Fourth Proportional to 11,081.86, 15,294.95 and 6,605.90

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Solution

The fourth proportional to 11,081.86, 15,294.95 and 6,605.90 is: 9,117.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.86 : 15,294.95 = 6,605.90 : x
  2. Step 2: Convert to fraction form
    11,081.86/15,294.95 = 6,605.90/x
  3. Step 3: Cross multiply
    11,081.86x = 15,294.95 × 6,605.90
  4. Step 4: Simplify right side
    11,081.86x = 101,036,877.18
  5. Step 5: Solve for x
    x = 101,036,877.18/11,081.86
  6. Step 6: Final answer
    x = 9,117.33

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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.