Home / 13,552.10-18,705.75-8,248.70

Finding the Fourth Proportional to 13,552.10, 18,705.75 and 8,248.70

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Solution

The fourth proportional to 13,552.10, 18,705.75 and 8,248.70 is: 11,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.10 : 18,705.75 = 8,248.70 : x
  2. Step 2: Convert to fraction form
    13,552.10/18,705.75 = 8,248.70/x
  3. Step 3: Cross multiply
    13,552.10x = 18,705.75 × 8,248.70
  4. Step 4: Simplify right side
    13,552.10x = 154,298,120.03
  5. Step 5: Solve for x
    x = 154,298,120.03/13,552.10
  6. Step 6: Final answer
    x = 11,385.55

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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.