Home / 13,636.08-20,444.54-5,309.06

Finding the Fourth Proportional to 13,636.08, 20,444.54 and 5,309.06

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Solution

The fourth proportional to 13,636.08, 20,444.54 and 5,309.06 is: 7,959.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.08 : 20,444.54 = 5,309.06 : x
  2. Step 2: Convert to fraction form
    13,636.08/20,444.54 = 5,309.06/x
  3. Step 3: Cross multiply
    13,636.08x = 20,444.54 × 5,309.06
  4. Step 4: Simplify right side
    13,636.08x = 108,541,289.53
  5. Step 5: Solve for x
    x = 108,541,289.53/13,636.08
  6. Step 6: Final answer
    x = 7,959.86

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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.