Home / 12,230.12-18,345.19-5,655.08

Finding the Fourth Proportional to 12,230.12, 18,345.19 and 5,655.08

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Solution

The fourth proportional to 12,230.12, 18,345.19 and 5,655.08 is: 8,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.12 : 18,345.19 = 5,655.08 : x
  2. Step 2: Convert to fraction form
    12,230.12/18,345.19 = 5,655.08/x
  3. Step 3: Cross multiply
    12,230.12x = 18,345.19 × 5,655.08
  4. Step 4: Simplify right side
    12,230.12x = 103,743,517.07
  5. Step 5: Solve for x
    x = 103,743,517.07/12,230.12
  6. Step 6: Final answer
    x = 8,482.62

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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.