Home / 12,277.98-18,417.20-3,958.74

Finding the Fourth Proportional to 12,277.98, 18,417.20 and 3,958.74

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Solution

The fourth proportional to 12,277.98, 18,417.20 and 3,958.74 is: 5,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.98 : 18,417.20 = 3,958.74 : x
  2. Step 2: Convert to fraction form
    12,277.98/18,417.20 = 3,958.74/x
  3. Step 3: Cross multiply
    12,277.98x = 18,417.20 × 3,958.74
  4. Step 4: Simplify right side
    12,277.98x = 72,908,886.53
  5. Step 5: Solve for x
    x = 72,908,886.53/12,277.98
  6. Step 6: Final answer
    x = 5,938.18

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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.