Home / 15,190.38-20,962.74-8,902.76

Finding the Fourth Proportional to 15,190.38, 20,962.74 and 8,902.76

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Solution

The fourth proportional to 15,190.38, 20,962.74 and 8,902.76 is: 12,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.38 : 20,962.74 = 8,902.76 : x
  2. Step 2: Convert to fraction form
    15,190.38/20,962.74 = 8,902.76/x
  3. Step 3: Cross multiply
    15,190.38x = 20,962.74 × 8,902.76
  4. Step 4: Simplify right side
    15,190.38x = 186,626,243.16
  5. Step 5: Solve for x
    x = 186,626,243.16/15,190.38
  6. Step 6: Final answer
    x = 12,285.82

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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.