Home / 9,119.97-12,596.45-6,478.83

Finding the Fourth Proportional to 9,119.97, 12,596.45 and 6,478.83

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Solution

The fourth proportional to 9,119.97, 12,596.45 and 6,478.83 is: 8,948.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.97 : 12,596.45 = 6,478.83 : x
  2. Step 2: Convert to fraction form
    9,119.97/12,596.45 = 6,478.83/x
  3. Step 3: Cross multiply
    9,119.97x = 12,596.45 × 6,478.83
  4. Step 4: Simplify right side
    9,119.97x = 81,610,225.76
  5. Step 5: Solve for x
    x = 81,610,225.76/9,119.97
  6. Step 6: Final answer
    x = 8,948.52

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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.