Home / 13,251.31-18,267.55-9,260.04

Finding the Fourth Proportional to 13,251.31, 18,267.55 and 9,260.04

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Solution

The fourth proportional to 13,251.31, 18,267.55 and 9,260.04 is: 12,765.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.31 : 18,267.55 = 9,260.04 : x
  2. Step 2: Convert to fraction form
    13,251.31/18,267.55 = 9,260.04/x
  3. Step 3: Cross multiply
    13,251.31x = 18,267.55 × 9,260.04
  4. Step 4: Simplify right side
    13,251.31x = 169,158,106.06
  5. Step 5: Solve for x
    x = 169,158,106.06/13,251.31
  6. Step 6: Final answer
    x = 12,765.39

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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.