Home / 15,077.42-20,793.22-9,412.69

Finding the Fourth Proportional to 15,077.42, 20,793.22 and 9,412.69

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Solution

The fourth proportional to 15,077.42, 20,793.22 and 9,412.69 is: 12,981.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.42 : 20,793.22 = 9,412.69 : x
  2. Step 2: Convert to fraction form
    15,077.42/20,793.22 = 9,412.69/x
  3. Step 3: Cross multiply
    15,077.42x = 20,793.22 × 9,412.69
  4. Step 4: Simplify right side
    15,077.42x = 195,720,133.96
  5. Step 5: Solve for x
    x = 195,720,133.96/15,077.42
  6. Step 6: Final answer
    x = 12,981.01

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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.