Home / 12,438.06-18,657.14-5,042.66

Finding the Fourth Proportional to 12,438.06, 18,657.14 and 5,042.66

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Solution

The fourth proportional to 12,438.06, 18,657.14 and 5,042.66 is: 7,564.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.06 : 18,657.14 = 5,042.66 : x
  2. Step 2: Convert to fraction form
    12,438.06/18,657.14 = 5,042.66/x
  3. Step 3: Cross multiply
    12,438.06x = 18,657.14 × 5,042.66
  4. Step 4: Simplify right side
    12,438.06x = 94,081,613.59
  5. Step 5: Solve for x
    x = 94,081,613.59/12,438.06
  6. Step 6: Final answer
    x = 7,564.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.