Home / 10,887.80-15,026.28-6,412.96

Finding the Fourth Proportional to 10,887.80, 15,026.28 and 6,412.96

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Solution

The fourth proportional to 10,887.80, 15,026.28 and 6,412.96 is: 8,850.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.80 : 15,026.28 = 6,412.96 : x
  2. Step 2: Convert to fraction form
    10,887.80/15,026.28 = 6,412.96/x
  3. Step 3: Cross multiply
    10,887.80x = 15,026.28 × 6,412.96
  4. Step 4: Simplify right side
    10,887.80x = 96,362,932.59
  5. Step 5: Solve for x
    x = 96,362,932.59/10,887.80
  6. Step 6: Final answer
    x = 8,850.54

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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.