Home / 9,799.20-13,514.85-6,611.40

Finding the Fourth Proportional to 9,799.20, 13,514.85 and 6,611.40

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Solution

The fourth proportional to 9,799.20, 13,514.85 and 6,611.40 is: 9,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,799.20 : 13,514.85 = 6,611.40 : x
  2. Step 2: Convert to fraction form
    9,799.20/13,514.85 = 6,611.40/x
  3. Step 3: Cross multiply
    9,799.20x = 13,514.85 × 6,611.40
  4. Step 4: Simplify right side
    9,799.20x = 89,352,079.29
  5. Step 5: Solve for x
    x = 89,352,079.29/9,799.20
  6. Step 6: Final answer
    x = 9,118.30

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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.