Home / 16,987.06-23,440.60-9,912.12

Finding the Fourth Proportional to 16,987.06, 23,440.60 and 9,912.12

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Solution

The fourth proportional to 16,987.06, 23,440.60 and 9,912.12 is: 13,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,987.06 : 23,440.60 = 9,912.12 : x
  2. Step 2: Convert to fraction form
    16,987.06/23,440.60 = 9,912.12/x
  3. Step 3: Cross multiply
    16,987.06x = 23,440.60 × 9,912.12
  4. Step 4: Simplify right side
    16,987.06x = 232,346,040.07
  5. Step 5: Solve for x
    x = 232,346,040.07/16,987.06
  6. Step 6: Final answer
    x = 13,677.83

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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.