Home / 10,120.02-15,178.20-2,722.77

Finding the Fourth Proportional to 10,120.02, 15,178.20 and 2,722.77

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Solution

The fourth proportional to 10,120.02, 15,178.20 and 2,722.77 is: 4,083.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.02 : 15,178.20 = 2,722.77 : x
  2. Step 2: Convert to fraction form
    10,120.02/15,178.20 = 2,722.77/x
  3. Step 3: Cross multiply
    10,120.02x = 15,178.20 × 2,722.77
  4. Step 4: Simplify right side
    10,120.02x = 41,326,747.61
  5. Step 5: Solve for x
    x = 41,326,747.61/10,120.02
  6. Step 6: Final answer
    x = 4,083.66

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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.