Home / 17,991.20-26,943.60-8,746.40

Finding the Fourth Proportional to 17,991.20, 26,943.60 and 8,746.40

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Solution

The fourth proportional to 17,991.20, 26,943.60 and 8,746.40 is: 13,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.20 : 26,943.60 = 8,746.40 : x
  2. Step 2: Convert to fraction form
    17,991.20/26,943.60 = 8,746.40/x
  3. Step 3: Cross multiply
    17,991.20x = 26,943.60 × 8,746.40
  4. Step 4: Simplify right side
    17,991.20x = 235,659,503.04
  5. Step 5: Solve for x
    x = 235,659,503.04/17,991.20
  6. Step 6: Final answer
    x = 13,098.60

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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.