Home / 12,486.04-18,727.14-4,166.20

Finding the Fourth Proportional to 12,486.04, 18,727.14 and 4,166.20

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Solution

The fourth proportional to 12,486.04, 18,727.14 and 4,166.20 is: 6,248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.04 : 18,727.14 = 4,166.20 : x
  2. Step 2: Convert to fraction form
    12,486.04/18,727.14 = 4,166.20/x
  3. Step 3: Cross multiply
    12,486.04x = 18,727.14 × 4,166.20
  4. Step 4: Simplify right side
    12,486.04x = 78,021,010.67
  5. Step 5: Solve for x
    x = 78,021,010.67/12,486.04
  6. Step 6: Final answer
    x = 6,248.66

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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.