Home / 12,146.77-18,209.85-4,749.24

Finding the Fourth Proportional to 12,146.77, 18,209.85 and 4,749.24

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Solution

The fourth proportional to 12,146.77, 18,209.85 and 4,749.24 is: 7,119.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.77 : 18,209.85 = 4,749.24 : x
  2. Step 2: Convert to fraction form
    12,146.77/18,209.85 = 4,749.24/x
  3. Step 3: Cross multiply
    12,146.77x = 18,209.85 × 4,749.24
  4. Step 4: Simplify right side
    12,146.77x = 86,482,948.01
  5. Step 5: Solve for x
    x = 86,482,948.01/12,146.77
  6. Step 6: Final answer
    x = 7,119.83

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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.