Home / 10,072.20-15,103.08-5,623.32

Finding the Fourth Proportional to 10,072.20, 15,103.08 and 5,623.32

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Solution

The fourth proportional to 10,072.20, 15,103.08 and 5,623.32 is: 8,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.20 : 15,103.08 = 5,623.32 : x
  2. Step 2: Convert to fraction form
    10,072.20/15,103.08 = 5,623.32/x
  3. Step 3: Cross multiply
    10,072.20x = 15,103.08 × 5,623.32
  4. Step 4: Simplify right side
    10,072.20x = 84,929,451.83
  5. Step 5: Solve for x
    x = 84,929,451.83/10,072.20
  6. Step 6: Final answer
    x = 8,432.07

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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.