Home / 12,607.19-18,913.60-3,842.79

Finding the Fourth Proportional to 12,607.19, 18,913.60 and 3,842.79

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Solution

The fourth proportional to 12,607.19, 18,913.60 and 3,842.79 is: 5,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.19 : 18,913.60 = 3,842.79 : x
  2. Step 2: Convert to fraction form
    12,607.19/18,913.60 = 3,842.79/x
  3. Step 3: Cross multiply
    12,607.19x = 18,913.60 × 3,842.79
  4. Step 4: Simplify right side
    12,607.19x = 72,680,983.34
  5. Step 5: Solve for x
    x = 72,680,983.34/12,607.19
  6. Step 6: Final answer
    x = 5,765.04

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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.