Home / 14,839.28-20,478.44-8,124.79

Finding the Fourth Proportional to 14,839.28, 20,478.44 and 8,124.79

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Solution

The fourth proportional to 14,839.28, 20,478.44 and 8,124.79 is: 11,212.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,839.28 : 20,478.44 = 8,124.79 : x
  2. Step 2: Convert to fraction form
    14,839.28/20,478.44 = 8,124.79/x
  3. Step 3: Cross multiply
    14,839.28x = 20,478.44 × 8,124.79
  4. Step 4: Simplify right side
    14,839.28x = 166,382,881.51
  5. Step 5: Solve for x
    x = 166,382,881.51/14,839.28
  6. Step 6: Final answer
    x = 11,212.33

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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.