Home / 8,495.32-12,740.20-2,947.28

Finding the Fourth Proportional to 8,495.32, 12,740.20 and 2,947.28

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Solution

The fourth proportional to 8,495.32, 12,740.20 and 2,947.28 is: 4,419.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495.32 : 12,740.20 = 2,947.28 : x
  2. Step 2: Convert to fraction form
    8,495.32/12,740.20 = 2,947.28/x
  3. Step 3: Cross multiply
    8,495.32x = 12,740.20 × 2,947.28
  4. Step 4: Simplify right side
    8,495.32x = 37,548,936.66
  5. Step 5: Solve for x
    x = 37,548,936.66/8,495.32
  6. Step 6: Final answer
    x = 4,419.96

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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.