Home / 10,618.79-14,649.85-6,841.66

Finding the Fourth Proportional to 10,618.79, 14,649.85 and 6,841.66

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Solution

The fourth proportional to 10,618.79, 14,649.85 and 6,841.66 is: 9,438.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.79 : 14,649.85 = 6,841.66 : x
  2. Step 2: Convert to fraction form
    10,618.79/14,649.85 = 6,841.66/x
  3. Step 3: Cross multiply
    10,618.79x = 14,649.85 × 6,841.66
  4. Step 4: Simplify right side
    10,618.79x = 100,229,292.75
  5. Step 5: Solve for x
    x = 100,229,292.75/10,618.79
  6. Step 6: Final answer
    x = 9,438.86

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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.