Home / 12,666.83-17,481.19-7,290.91

Finding the Fourth Proportional to 12,666.83, 17,481.19 and 7,290.91

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Solution

The fourth proportional to 12,666.83, 17,481.19 and 7,290.91 is: 10,062.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.83 : 17,481.19 = 7,290.91 : x
  2. Step 2: Convert to fraction form
    12,666.83/17,481.19 = 7,290.91/x
  3. Step 3: Cross multiply
    12,666.83x = 17,481.19 × 7,290.91
  4. Step 4: Simplify right side
    12,666.83x = 127,453,820.78
  5. Step 5: Solve for x
    x = 127,453,820.78/12,666.83
  6. Step 6: Final answer
    x = 10,062.01

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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.