Home / 15,890.90-23,815.12-8,379.14

Finding the Fourth Proportional to 15,890.90, 23,815.12 and 8,379.14

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Solution

The fourth proportional to 15,890.90, 23,815.12 and 8,379.14 is: 12,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,890.90 : 23,815.12 = 8,379.14 : x
  2. Step 2: Convert to fraction form
    15,890.90/23,815.12 = 8,379.14/x
  3. Step 3: Cross multiply
    15,890.90x = 23,815.12 × 8,379.14
  4. Step 4: Simplify right side
    15,890.90x = 199,550,224.60
  5. Step 5: Solve for x
    x = 199,550,224.60/15,890.90
  6. Step 6: Final answer
    x = 12,557.52

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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.