Home / 11,430.12-15,773.91-6,394.17

Finding the Fourth Proportional to 11,430.12, 15,773.91 and 6,394.17

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Solution

The fourth proportional to 11,430.12, 15,773.91 and 6,394.17 is: 8,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.12 : 15,773.91 = 6,394.17 : x
  2. Step 2: Convert to fraction form
    11,430.12/15,773.91 = 6,394.17/x
  3. Step 3: Cross multiply
    11,430.12x = 15,773.91 × 6,394.17
  4. Step 4: Simplify right side
    11,430.12x = 100,861,062.10
  5. Step 5: Solve for x
    x = 100,861,062.10/11,430.12
  6. Step 6: Final answer
    x = 8,824.15

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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.