Home / 12,419.60-18,620.52-5,842.40

Finding the Fourth Proportional to 12,419.60, 18,620.52 and 5,842.40

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Solution

The fourth proportional to 12,419.60, 18,620.52 and 5,842.40 is: 8,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.60 : 18,620.52 = 5,842.40 : x
  2. Step 2: Convert to fraction form
    12,419.60/18,620.52 = 5,842.40/x
  3. Step 3: Cross multiply
    12,419.60x = 18,620.52 × 5,842.40
  4. Step 4: Simplify right side
    12,419.60x = 108,788,526.05
  5. Step 5: Solve for x
    x = 108,788,526.05/12,419.60
  6. Step 6: Final answer
    x = 8,759.42

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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.