Home / 9,780.72-13,474.58-8,001.96

Finding the Fourth Proportional to 9,780.72, 13,474.58 and 8,001.96

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Solution

The fourth proportional to 9,780.72, 13,474.58 and 8,001.96 is: 11,024.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.72 : 13,474.58 = 8,001.96 : x
  2. Step 2: Convert to fraction form
    9,780.72/13,474.58 = 8,001.96/x
  3. Step 3: Cross multiply
    9,780.72x = 13,474.58 × 8,001.96
  4. Step 4: Simplify right side
    9,780.72x = 107,823,050.18
  5. Step 5: Solve for x
    x = 107,823,050.18/9,780.72
  6. Step 6: Final answer
    x = 11,024.04

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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.