Home / 14,422.32-21,618.72-5,645.28

Finding the Fourth Proportional to 14,422.32, 21,618.72 and 5,645.28

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Solution

The fourth proportional to 14,422.32, 21,618.72 and 5,645.28 is: 8,462.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,422.32 : 21,618.72 = 5,645.28 : x
  2. Step 2: Convert to fraction form
    14,422.32/21,618.72 = 5,645.28/x
  3. Step 3: Cross multiply
    14,422.32x = 21,618.72 × 5,645.28
  4. Step 4: Simplify right side
    14,422.32x = 122,043,727.64
  5. Step 5: Solve for x
    x = 122,043,727.64/14,422.32
  6. Step 6: Final answer
    x = 8,462.14

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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.