Home / 12,039.12-16,618.11-7,261.74

Finding the Fourth Proportional to 12,039.12, 16,618.11 and 7,261.74

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Solution

The fourth proportional to 12,039.12, 16,618.11 and 7,261.74 is: 10,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.12 : 16,618.11 = 7,261.74 : x
  2. Step 2: Convert to fraction form
    12,039.12/16,618.11 = 7,261.74/x
  3. Step 3: Cross multiply
    12,039.12x = 16,618.11 × 7,261.74
  4. Step 4: Simplify right side
    12,039.12x = 120,676,394.11
  5. Step 5: Solve for x
    x = 120,676,394.11/12,039.12
  6. Step 6: Final answer
    x = 10,023.69

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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.