Home / 18,319.48-25,281.10-9,936.12

Finding the Fourth Proportional to 18,319.48, 25,281.10 and 9,936.12

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Solution

The fourth proportional to 18,319.48, 25,281.10 and 9,936.12 is: 13,711.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.48 : 25,281.10 = 9,936.12 : x
  2. Step 2: Convert to fraction form
    18,319.48/25,281.10 = 9,936.12/x
  3. Step 3: Cross multiply
    18,319.48x = 25,281.10 × 9,936.12
  4. Step 4: Simplify right side
    18,319.48x = 251,196,043.33
  5. Step 5: Solve for x
    x = 251,196,043.33/18,319.48
  6. Step 6: Final answer
    x = 13,711.96

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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.