Home / 9,887.98-13,654.54-6,357.28

Finding the Fourth Proportional to 9,887.98, 13,654.54 and 6,357.28

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Solution

The fourth proportional to 9,887.98, 13,654.54 and 6,357.28 is: 8,778.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,887.98 : 13,654.54 = 6,357.28 : x
  2. Step 2: Convert to fraction form
    9,887.98/13,654.54 = 6,357.28/x
  3. Step 3: Cross multiply
    9,887.98x = 13,654.54 × 6,357.28
  4. Step 4: Simplify right side
    9,887.98x = 86,805,734.05
  5. Step 5: Solve for x
    x = 86,805,734.05/9,887.98
  6. Step 6: Final answer
    x = 8,778.91

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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.