Home / 11,125.95-15,352.29-6,648.75

Finding the Fourth Proportional to 11,125.95, 15,352.29 and 6,648.75

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Solution

The fourth proportional to 11,125.95, 15,352.29 and 6,648.75 is: 9,174.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.95 : 15,352.29 = 6,648.75 : x
  2. Step 2: Convert to fraction form
    11,125.95/15,352.29 = 6,648.75/x
  3. Step 3: Cross multiply
    11,125.95x = 15,352.29 × 6,648.75
  4. Step 4: Simplify right side
    11,125.95x = 102,073,538.14
  5. Step 5: Solve for x
    x = 102,073,538.14/11,125.95
  6. Step 6: Final answer
    x = 9,174.37

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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.