Home / 9,979.98-14,972.67-8,148.30

Finding the Fourth Proportional to 9,979.98, 14,972.67 and 8,148.30

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Solution

The fourth proportional to 9,979.98, 14,972.67 and 8,148.30 is: 12,224.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.98 : 14,972.67 = 8,148.30 : x
  2. Step 2: Convert to fraction form
    9,979.98/14,972.67 = 8,148.30/x
  3. Step 3: Cross multiply
    9,979.98x = 14,972.67 × 8,148.30
  4. Step 4: Simplify right side
    9,979.98x = 122,001,806.96
  5. Step 5: Solve for x
    x = 122,001,806.96/9,979.98
  6. Step 6: Final answer
    x = 12,224.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.