Home / 15,019.38-20,727.41-9,357.48

Finding the Fourth Proportional to 15,019.38, 20,727.41 and 9,357.48

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Solution

The fourth proportional to 15,019.38, 20,727.41 and 9,357.48 is: 12,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.38 : 20,727.41 = 9,357.48 : x
  2. Step 2: Convert to fraction form
    15,019.38/20,727.41 = 9,357.48/x
  3. Step 3: Cross multiply
    15,019.38x = 20,727.41 × 9,357.48
  4. Step 4: Simplify right side
    15,019.38x = 193,956,277.74
  5. Step 5: Solve for x
    x = 193,956,277.74/15,019.38
  6. Step 6: Final answer
    x = 12,913.73

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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.