Home / 9,517.86-13,129.29-6,718.50

Finding the Fourth Proportional to 9,517.86, 13,129.29 and 6,718.50

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Solution

The fourth proportional to 9,517.86, 13,129.29 and 6,718.50 is: 9,267.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,517.86 : 13,129.29 = 6,718.50 : x
  2. Step 2: Convert to fraction form
    9,517.86/13,129.29 = 6,718.50/x
  3. Step 3: Cross multiply
    9,517.86x = 13,129.29 × 6,718.50
  4. Step 4: Simplify right side
    9,517.86x = 88,209,134.87
  5. Step 5: Solve for x
    x = 88,209,134.87/9,517.86
  6. Step 6: Final answer
    x = 9,267.75

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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.