Home / 15,187.50-20,956.52-8,472.60

Finding the Fourth Proportional to 15,187.50, 20,956.52 and 8,472.60

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Solution

The fourth proportional to 15,187.50, 20,956.52 and 8,472.60 is: 11,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.50 : 20,956.52 = 8,472.60 : x
  2. Step 2: Convert to fraction form
    15,187.50/20,956.52 = 8,472.60/x
  3. Step 3: Cross multiply
    15,187.50x = 20,956.52 × 8,472.60
  4. Step 4: Simplify right side
    15,187.50x = 177,556,232.53
  5. Step 5: Solve for x
    x = 177,556,232.53/15,187.50
  6. Step 6: Final answer
    x = 11,690.95

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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.