Home / 9,890.75-13,654.02-6,359.96

Finding the Fourth Proportional to 9,890.75, 13,654.02 and 6,359.96

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Solution

The fourth proportional to 9,890.75, 13,654.02 and 6,359.96 is: 8,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.75 : 13,654.02 = 6,359.96 : x
  2. Step 2: Convert to fraction form
    9,890.75/13,654.02 = 6,359.96/x
  3. Step 3: Cross multiply
    9,890.75x = 13,654.02 × 6,359.96
  4. Step 4: Simplify right side
    9,890.75x = 86,838,952.77
  5. Step 5: Solve for x
    x = 86,838,952.77/9,890.75
  6. Step 6: Final answer
    x = 8,779.82

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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.