Home / 10,127.02-15,190.41-4,279.66

Finding the Fourth Proportional to 10,127.02, 15,190.41 and 4,279.66

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Solution

The fourth proportional to 10,127.02, 15,190.41 and 4,279.66 is: 6,419.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.02 : 15,190.41 = 4,279.66 : x
  2. Step 2: Convert to fraction form
    10,127.02/15,190.41 = 4,279.66/x
  3. Step 3: Cross multiply
    10,127.02x = 15,190.41 × 4,279.66
  4. Step 4: Simplify right side
    10,127.02x = 65,009,790.06
  5. Step 5: Solve for x
    x = 65,009,790.06/10,127.02
  6. Step 6: Final answer
    x = 6,419.44

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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.