Home / 15,610.59-21,550.05-9,645.75

Finding the Fourth Proportional to 15,610.59, 21,550.05 and 9,645.75

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Solution

The fourth proportional to 15,610.59, 21,550.05 and 9,645.75 is: 13,315.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.59 : 21,550.05 = 9,645.75 : x
  2. Step 2: Convert to fraction form
    15,610.59/21,550.05 = 9,645.75/x
  3. Step 3: Cross multiply
    15,610.59x = 21,550.05 × 9,645.75
  4. Step 4: Simplify right side
    15,610.59x = 207,866,394.79
  5. Step 5: Solve for x
    x = 207,866,394.79/15,610.59
  6. Step 6: Final answer
    x = 13,315.73

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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.