Home / 12,278.74-18,418.35-3,044.50

Finding the Fourth Proportional to 12,278.74, 18,418.35 and 3,044.50

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Solution

The fourth proportional to 12,278.74, 18,418.35 and 3,044.50 is: 4,566.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.74 : 18,418.35 = 3,044.50 : x
  2. Step 2: Convert to fraction form
    12,278.74/18,418.35 = 3,044.50/x
  3. Step 3: Cross multiply
    12,278.74x = 18,418.35 × 3,044.50
  4. Step 4: Simplify right side
    12,278.74x = 56,074,666.58
  5. Step 5: Solve for x
    x = 56,074,666.58/12,278.74
  6. Step 6: Final answer
    x = 4,566.81

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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.