Home / 14,899.28-20,563.08-9,939.92

Finding the Fourth Proportional to 14,899.28, 20,563.08 and 9,939.92

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Solution

The fourth proportional to 14,899.28, 20,563.08 and 9,939.92 is: 13,718.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,899.28 : 20,563.08 = 9,939.92 : x
  2. Step 2: Convert to fraction form
    14,899.28/20,563.08 = 9,939.92/x
  3. Step 3: Cross multiply
    14,899.28x = 20,563.08 × 9,939.92
  4. Step 4: Simplify right side
    14,899.28x = 204,395,370.15
  5. Step 5: Solve for x
    x = 204,395,370.15/14,899.28
  6. Step 6: Final answer
    x = 13,718.47

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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.