Home / 8,887.20-12,264.96-5,111.58

Finding the Fourth Proportional to 8,887.20, 12,264.96 and 5,111.58

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Solution

The fourth proportional to 8,887.20, 12,264.96 and 5,111.58 is: 7,054.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.20 : 12,264.96 = 5,111.58 : x
  2. Step 2: Convert to fraction form
    8,887.20/12,264.96 = 5,111.58/x
  3. Step 3: Cross multiply
    8,887.20x = 12,264.96 × 5,111.58
  4. Step 4: Simplify right side
    8,887.20x = 62,693,324.24
  5. Step 5: Solve for x
    x = 62,693,324.24/8,887.20
  6. Step 6: Final answer
    x = 7,054.34

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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.