Home / 11,953.28-16,499.61-7,237.55

Finding the Fourth Proportional to 11,953.28, 16,499.61 and 7,237.55

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Solution

The fourth proportional to 11,953.28, 16,499.61 and 7,237.55 is: 9,990.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,953.28 : 16,499.61 = 7,237.55 : x
  2. Step 2: Convert to fraction form
    11,953.28/16,499.61 = 7,237.55/x
  3. Step 3: Cross multiply
    11,953.28x = 16,499.61 × 7,237.55
  4. Step 4: Simplify right side
    11,953.28x = 119,416,793.60
  5. Step 5: Solve for x
    x = 119,416,793.60/11,953.28
  6. Step 6: Final answer
    x = 9,990.29

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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.