Home / 15,405.76-23,101.32-8,002.80

Finding the Fourth Proportional to 15,405.76, 23,101.32 and 8,002.80

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Solution

The fourth proportional to 15,405.76, 23,101.32 and 8,002.80 is: 12,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,405.76 : 23,101.32 = 8,002.80 : x
  2. Step 2: Convert to fraction form
    15,405.76/23,101.32 = 8,002.80/x
  3. Step 3: Cross multiply
    15,405.76x = 23,101.32 × 8,002.80
  4. Step 4: Simplify right side
    15,405.76x = 184,875,243.70
  5. Step 5: Solve for x
    x = 184,875,243.70/15,405.76
  6. Step 6: Final answer
    x = 12,000.40

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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.