Home / 11,437.60-17,156.40-7,040.80

Finding the Fourth Proportional to 11,437.60, 17,156.40 and 7,040.80

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Solution

The fourth proportional to 11,437.60, 17,156.40 and 7,040.80 is: 10,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.60 : 17,156.40 = 7,040.80 : x
  2. Step 2: Convert to fraction form
    11,437.60/17,156.40 = 7,040.80/x
  3. Step 3: Cross multiply
    11,437.60x = 17,156.40 × 7,040.80
  4. Step 4: Simplify right side
    11,437.60x = 120,794,781.12
  5. Step 5: Solve for x
    x = 120,794,781.12/11,437.60
  6. Step 6: Final answer
    x = 10,561.20

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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.