Home / 12,530.80-17,291.42-7,226.02

Finding the Fourth Proportional to 12,530.80, 17,291.42 and 7,226.02

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Solution

The fourth proportional to 12,530.80, 17,291.42 and 7,226.02 is: 9,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.80 : 17,291.42 = 7,226.02 : x
  2. Step 2: Convert to fraction form
    12,530.80/17,291.42 = 7,226.02/x
  3. Step 3: Cross multiply
    12,530.80x = 17,291.42 × 7,226.02
  4. Step 4: Simplify right side
    12,530.80x = 124,948,146.75
  5. Step 5: Solve for x
    x = 124,948,146.75/12,530.80
  6. Step 6: Final answer
    x = 9,971.28

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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.