Home / 17,530.80-26,291.40-7,143.60

Finding the Fourth Proportional to 17,530.80, 26,291.40 and 7,143.60

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Solution

The fourth proportional to 17,530.80, 26,291.40 and 7,143.60 is: 10,713.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,530.80 : 26,291.40 = 7,143.60 : x
  2. Step 2: Convert to fraction form
    17,530.80/26,291.40 = 7,143.60/x
  3. Step 3: Cross multiply
    17,530.80x = 26,291.40 × 7,143.60
  4. Step 4: Simplify right side
    17,530.80x = 187,815,245.04
  5. Step 5: Solve for x
    x = 187,815,245.04/17,530.80
  6. Step 6: Final answer
    x = 10,713.44

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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.