Home / 12,687.60-19,026.54-4,370.52

Finding the Fourth Proportional to 12,687.60, 19,026.54 and 4,370.52

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Solution

The fourth proportional to 12,687.60, 19,026.54 and 4,370.52 is: 6,554.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687.60 : 19,026.54 = 4,370.52 : x
  2. Step 2: Convert to fraction form
    12,687.60/19,026.54 = 4,370.52/x
  3. Step 3: Cross multiply
    12,687.60x = 19,026.54 × 4,370.52
  4. Step 4: Simplify right side
    12,687.60x = 83,155,873.60
  5. Step 5: Solve for x
    x = 83,155,873.60/12,687.60
  6. Step 6: Final answer
    x = 6,554.11

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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.