Home / 10,015.92-13,813.20-6,475.68

Finding the Fourth Proportional to 10,015.92, 13,813.20 and 6,475.68

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Solution

The fourth proportional to 10,015.92, 13,813.20 and 6,475.68 is: 8,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.92 : 13,813.20 = 6,475.68 : x
  2. Step 2: Convert to fraction form
    10,015.92/13,813.20 = 6,475.68/x
  3. Step 3: Cross multiply
    10,015.92x = 13,813.20 × 6,475.68
  4. Step 4: Simplify right side
    10,015.92x = 89,449,862.98
  5. Step 5: Solve for x
    x = 89,449,862.98/10,015.92
  6. Step 6: Final answer
    x = 8,930.77

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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.