Home / 15,160.77-20,924.73-9,191.48

Finding the Fourth Proportional to 15,160.77, 20,924.73 and 9,191.48

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Solution

The fourth proportional to 15,160.77, 20,924.73 and 9,191.48 is: 12,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,160.77 : 20,924.73 = 9,191.48 : x
  2. Step 2: Convert to fraction form
    15,160.77/20,924.73 = 9,191.48/x
  3. Step 3: Cross multiply
    15,160.77x = 20,924.73 × 9,191.48
  4. Step 4: Simplify right side
    15,160.77x = 192,329,132.68
  5. Step 5: Solve for x
    x = 192,329,132.68/15,160.77
  6. Step 6: Final answer
    x = 12,685.97

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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.