Home / 17,913.90-24,720-11,199.18

Finding the Fourth Proportional to 17,913.90, 24,720 and 11,199.18

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Solution

The fourth proportional to 17,913.90, 24,720 and 11,199.18 is: 15,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,913.90 : 24,720 = 11,199.18 : x
  2. Step 2: Convert to fraction form
    17,913.90/24,720 = 11,199.18/x
  3. Step 3: Cross multiply
    17,913.90x = 24,720 × 11,199.18
  4. Step 4: Simplify right side
    17,913.90x = 276,843,729.60
  5. Step 5: Solve for x
    x = 276,843,729.60/17,913.90
  6. Step 6: Final answer
    x = 15,454.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.