Home / 13,959.36-20,934.27-5,637.21

Finding the Fourth Proportional to 13,959.36, 20,934.27 and 5,637.21

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Solution

The fourth proportional to 13,959.36, 20,934.27 and 5,637.21 is: 8,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.36 : 20,934.27 = 5,637.21 : x
  2. Step 2: Convert to fraction form
    13,959.36/20,934.27 = 5,637.21/x
  3. Step 3: Cross multiply
    13,959.36x = 20,934.27 × 5,637.21
  4. Step 4: Simplify right side
    13,959.36x = 118,010,876.19
  5. Step 5: Solve for x
    x = 118,010,876.19/13,959.36
  6. Step 6: Final answer
    x = 8,453.89

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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.