Home / 10,512.38-15,768.56-4,275.78

Finding the Fourth Proportional to 10,512.38, 15,768.56 and 4,275.78

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Solution

The fourth proportional to 10,512.38, 15,768.56 and 4,275.78 is: 6,413.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.38 : 15,768.56 = 4,275.78 : x
  2. Step 2: Convert to fraction form
    10,512.38/15,768.56 = 4,275.78/x
  3. Step 3: Cross multiply
    10,512.38x = 15,768.56 × 4,275.78
  4. Step 4: Simplify right side
    10,512.38x = 67,422,904.17
  5. Step 5: Solve for x
    x = 67,422,904.17/10,512.38
  6. Step 6: Final answer
    x = 6,413.67

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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.