Home / 13,965.64-20,948.28-5,645.52

Finding the Fourth Proportional to 13,965.64, 20,948.28 and 5,645.52

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Solution

The fourth proportional to 13,965.64, 20,948.28 and 5,645.52 is: 8,468.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.64 : 20,948.28 = 5,645.52 : x
  2. Step 2: Convert to fraction form
    13,965.64/20,948.28 = 5,645.52/x
  3. Step 3: Cross multiply
    13,965.64x = 20,948.28 × 5,645.52
  4. Step 4: Simplify right side
    13,965.64x = 118,263,933.71
  5. Step 5: Solve for x
    x = 118,263,933.71/13,965.64
  6. Step 6: Final answer
    x = 8,468.21

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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.