Home / 19,919.54-29,865.48-8,820.18

Finding the Fourth Proportional to 19,919.54, 29,865.48 and 8,820.18

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Solution

The fourth proportional to 19,919.54, 29,865.48 and 8,820.18 is: 13,224.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.54 : 29,865.48 = 8,820.18 : x
  2. Step 2: Convert to fraction form
    19,919.54/29,865.48 = 8,820.18/x
  3. Step 3: Cross multiply
    19,919.54x = 29,865.48 × 8,820.18
  4. Step 4: Simplify right side
    19,919.54x = 263,418,909.39
  5. Step 5: Solve for x
    x = 263,418,909.39/19,919.54
  6. Step 6: Final answer
    x = 13,224.15

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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.