Home / 11,278.77-15,564.13-6,174.15

Finding the Fourth Proportional to 11,278.77, 15,564.13 and 6,174.15

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Solution

The fourth proportional to 11,278.77, 15,564.13 and 6,174.15 is: 8,520.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.77 : 15,564.13 = 6,174.15 : x
  2. Step 2: Convert to fraction form
    11,278.77/15,564.13 = 6,174.15/x
  3. Step 3: Cross multiply
    11,278.77x = 15,564.13 × 6,174.15
  4. Step 4: Simplify right side
    11,278.77x = 96,095,273.24
  5. Step 5: Solve for x
    x = 96,095,273.24/11,278.77
  6. Step 6: Final answer
    x = 8,520.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.