Home / 12,094.20-16,686.90-7,618.68

Finding the Fourth Proportional to 12,094.20, 16,686.90 and 7,618.68

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Solution

The fourth proportional to 12,094.20, 16,686.90 and 7,618.68 is: 10,511.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,094.20 : 16,686.90 = 7,618.68 : x
  2. Step 2: Convert to fraction form
    12,094.20/16,686.90 = 7,618.68/x
  3. Step 3: Cross multiply
    12,094.20x = 16,686.90 × 7,618.68
  4. Step 4: Simplify right side
    12,094.20x = 127,132,151.29
  5. Step 5: Solve for x
    x = 127,132,151.29/12,094.20
  6. Step 6: Final answer
    x = 10,511.83

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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.