Home / 15,154.56-20,912.64-8,867.52

Finding the Fourth Proportional to 15,154.56, 20,912.64 and 8,867.52

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Solution

The fourth proportional to 15,154.56, 20,912.64 and 8,867.52 is: 12,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.56 : 20,912.64 = 8,867.52 : x
  2. Step 2: Convert to fraction form
    15,154.56/20,912.64 = 8,867.52/x
  3. Step 3: Cross multiply
    15,154.56x = 20,912.64 × 8,867.52
  4. Step 4: Simplify right side
    15,154.56x = 185,443,253.45
  5. Step 5: Solve for x
    x = 185,443,253.45/15,154.56
  6. Step 6: Final answer
    x = 12,236.80

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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.