Home / 12,482.10-18,721.11-4,162.19

Finding the Fourth Proportional to 12,482.10, 18,721.11 and 4,162.19

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Solution

The fourth proportional to 12,482.10, 18,721.11 and 4,162.19 is: 6,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.10 : 18,721.11 = 4,162.19 : x
  2. Step 2: Convert to fraction form
    12,482.10/18,721.11 = 4,162.19/x
  3. Step 3: Cross multiply
    12,482.10x = 18,721.11 × 4,162.19
  4. Step 4: Simplify right side
    12,482.10x = 77,920,723.23
  5. Step 5: Solve for x
    x = 77,920,723.23/12,482.10
  6. Step 6: Final answer
    x = 6,242.60

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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.