Home / 14,939.28-20,605.56-12,685.52

Finding the Fourth Proportional to 14,939.28, 20,605.56 and 12,685.52

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Solution

The fourth proportional to 14,939.28, 20,605.56 and 12,685.52 is: 17,496.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.28 : 20,605.56 = 12,685.52 : x
  2. Step 2: Convert to fraction form
    14,939.28/20,605.56 = 12,685.52/x
  3. Step 3: Cross multiply
    14,939.28x = 20,605.56 × 12,685.52
  4. Step 4: Simplify right side
    14,939.28x = 261,392,243.49
  5. Step 5: Solve for x
    x = 261,392,243.49/14,939.28
  6. Step 6: Final answer
    x = 17,496.98

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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.