Home / 9,206.55-12,689.87-6,514.29

Finding the Fourth Proportional to 9,206.55, 12,689.87 and 6,514.29

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Solution

The fourth proportional to 9,206.55, 12,689.87 and 6,514.29 is: 8,978.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206.55 : 12,689.87 = 6,514.29 : x
  2. Step 2: Convert to fraction form
    9,206.55/12,689.87 = 6,514.29/x
  3. Step 3: Cross multiply
    9,206.55x = 12,689.87 × 6,514.29
  4. Step 4: Simplify right side
    9,206.55x = 82,665,460.67
  5. Step 5: Solve for x
    x = 82,665,460.67/9,206.55
  6. Step 6: Final answer
    x = 8,978.98

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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.