Home / 10,512.30-15,768.38-3,117.32

Finding the Fourth Proportional to 10,512.30, 15,768.38 and 3,117.32

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Solution

The fourth proportional to 10,512.30, 15,768.38 and 3,117.32 is: 4,675.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.30 : 15,768.38 = 3,117.32 : x
  2. Step 2: Convert to fraction form
    10,512.30/15,768.38 = 3,117.32/x
  3. Step 3: Cross multiply
    10,512.30x = 15,768.38 × 3,117.32
  4. Step 4: Simplify right side
    10,512.30x = 49,155,086.34
  5. Step 5: Solve for x
    x = 49,155,086.34/10,512.30
  6. Step 6: Final answer
    x = 4,675.96

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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.