Home / 10,427.32-15,640.86-4,188.92

Finding the Fourth Proportional to 10,427.32, 15,640.86 and 4,188.92

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Solution

The fourth proportional to 10,427.32, 15,640.86 and 4,188.92 is: 6,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.32 : 15,640.86 = 4,188.92 : x
  2. Step 2: Convert to fraction form
    10,427.32/15,640.86 = 4,188.92/x
  3. Step 3: Cross multiply
    10,427.32x = 15,640.86 × 4,188.92
  4. Step 4: Simplify right side
    10,427.32x = 65,518,311.27
  5. Step 5: Solve for x
    x = 65,518,311.27/10,427.32
  6. Step 6: Final answer
    x = 6,283.33

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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.