Home / 9,979.38-14,970.78-4,132.80

Finding the Fourth Proportional to 9,979.38, 14,970.78 and 4,132.80

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Solution

The fourth proportional to 9,979.38, 14,970.78 and 4,132.80 is: 6,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.38 : 14,970.78 = 4,132.80 : x
  2. Step 2: Convert to fraction form
    9,979.38/14,970.78 = 4,132.80/x
  3. Step 3: Cross multiply
    9,979.38x = 14,970.78 × 4,132.80
  4. Step 4: Simplify right side
    9,979.38x = 61,871,239.58
  5. Step 5: Solve for x
    x = 61,871,239.58/9,979.38
  6. Step 6: Final answer
    x = 6,199.91

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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.