Home / 8,947.08-13,415.32-2,705.20

Finding the Fourth Proportional to 8,947.08, 13,415.32 and 2,705.20

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Solution

The fourth proportional to 8,947.08, 13,415.32 and 2,705.20 is: 4,056.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.08 : 13,415.32 = 2,705.20 : x
  2. Step 2: Convert to fraction form
    8,947.08/13,415.32 = 2,705.20/x
  3. Step 3: Cross multiply
    8,947.08x = 13,415.32 × 2,705.20
  4. Step 4: Simplify right side
    8,947.08x = 36,291,123.66
  5. Step 5: Solve for x
    x = 36,291,123.66/8,947.08
  6. Step 6: Final answer
    x = 4,056.20

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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.