Home / 14,962.06-20,661.60-9,382.78

Finding the Fourth Proportional to 14,962.06, 20,661.60 and 9,382.78

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Solution

The fourth proportional to 14,962.06, 20,661.60 and 9,382.78 is: 12,956.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,962.06 : 20,661.60 = 9,382.78 : x
  2. Step 2: Convert to fraction form
    14,962.06/20,661.60 = 9,382.78/x
  3. Step 3: Cross multiply
    14,962.06x = 20,661.60 × 9,382.78
  4. Step 4: Simplify right side
    14,962.06x = 193,863,247.25
  5. Step 5: Solve for x
    x = 193,863,247.25/14,962.06
  6. Step 6: Final answer
    x = 12,956.99

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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.