Home / 11,081.36-15,294.26-6,605.40

Finding the Fourth Proportional to 11,081.36, 15,294.26 and 6,605.40

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Solution

The fourth proportional to 11,081.36, 15,294.26 and 6,605.40 is: 9,116.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.36 : 15,294.26 = 6,605.40 : x
  2. Step 2: Convert to fraction form
    11,081.36/15,294.26 = 6,605.40/x
  3. Step 3: Cross multiply
    11,081.36x = 15,294.26 × 6,605.40
  4. Step 4: Simplify right side
    11,081.36x = 101,024,671.98
  5. Step 5: Solve for x
    x = 101,024,671.98/11,081.36
  6. Step 6: Final answer
    x = 9,116.64

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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.