Home / 15,368.30-23,003.85-8,330.75

Finding the Fourth Proportional to 15,368.30, 23,003.85 and 8,330.75

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Solution

The fourth proportional to 15,368.30, 23,003.85 and 8,330.75 is: 12,469.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368.30 : 23,003.85 = 8,330.75 : x
  2. Step 2: Convert to fraction form
    15,368.30/23,003.85 = 8,330.75/x
  3. Step 3: Cross multiply
    15,368.30x = 23,003.85 × 8,330.75
  4. Step 4: Simplify right side
    15,368.30x = 191,639,323.39
  5. Step 5: Solve for x
    x = 191,639,323.39/15,368.30
  6. Step 6: Final answer
    x = 12,469.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.