Home / 12,854.70-19,281.24-4,095.90

Finding the Fourth Proportional to 12,854.70, 19,281.24 and 4,095.90

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Solution

The fourth proportional to 12,854.70, 19,281.24 and 4,095.90 is: 6,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854.70 : 19,281.24 = 4,095.90 : x
  2. Step 2: Convert to fraction form
    12,854.70/19,281.24 = 4,095.90/x
  3. Step 3: Cross multiply
    12,854.70x = 19,281.24 × 4,095.90
  4. Step 4: Simplify right side
    12,854.70x = 78,974,030.92
  5. Step 5: Solve for x
    x = 78,974,030.92/12,854.70
  6. Step 6: Final answer
    x = 6,143.59

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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.