Home / 13,251.12-18,267.28-9,259.85

Finding the Fourth Proportional to 13,251.12, 18,267.28 and 9,259.85

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Solution

The fourth proportional to 13,251.12, 18,267.28 and 9,259.85 is: 12,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.12 : 18,267.28 = 9,259.85 : x
  2. Step 2: Convert to fraction form
    13,251.12/18,267.28 = 9,259.85/x
  3. Step 3: Cross multiply
    13,251.12x = 18,267.28 × 9,259.85
  4. Step 4: Simplify right side
    13,251.12x = 169,152,158.22
  5. Step 5: Solve for x
    x = 169,152,158.22/13,251.12
  6. Step 6: Final answer
    x = 12,765.12

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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.