Home / 18,319.60-25,281.16-9,936.08

Finding the Fourth Proportional to 18,319.60, 25,281.16 and 9,936.08

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Solution

The fourth proportional to 18,319.60, 25,281.16 and 9,936.08 is: 13,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.60 : 25,281.16 = 9,936.08 : x
  2. Step 2: Convert to fraction form
    18,319.60/25,281.16 = 9,936.08/x
  3. Step 3: Cross multiply
    18,319.60x = 25,281.16 × 9,936.08
  4. Step 4: Simplify right side
    18,319.60x = 251,195,628.25
  5. Step 5: Solve for x
    x = 251,195,628.25/18,319.60
  6. Step 6: Final answer
    x = 13,711.85

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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.