Home / 13,565.80-20,321.88-10,630.36

Finding the Fourth Proportional to 13,565.80, 20,321.88 and 10,630.36

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Solution

The fourth proportional to 13,565.80, 20,321.88 and 10,630.36 is: 15,924.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.80 : 20,321.88 = 10,630.36 : x
  2. Step 2: Convert to fraction form
    13,565.80/20,321.88 = 10,630.36/x
  3. Step 3: Cross multiply
    13,565.80x = 20,321.88 × 10,630.36
  4. Step 4: Simplify right side
    13,565.80x = 216,028,900.28
  5. Step 5: Solve for x
    x = 216,028,900.28/13,565.80
  6. Step 6: Final answer
    x = 15,924.52

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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.