Home / 11,275.92-15,549.30-6,798.78

Finding the Fourth Proportional to 11,275.92, 15,549.30 and 6,798.78

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Solution

The fourth proportional to 11,275.92, 15,549.30 and 6,798.78 is: 9,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.92 : 15,549.30 = 6,798.78 : x
  2. Step 2: Convert to fraction form
    11,275.92/15,549.30 = 6,798.78/x
  3. Step 3: Cross multiply
    11,275.92x = 15,549.30 × 6,798.78
  4. Step 4: Simplify right side
    11,275.92x = 105,716,269.85
  5. Step 5: Solve for x
    x = 105,716,269.85/11,275.92
  6. Step 6: Final answer
    x = 9,375.40

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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.