Home / 16,987.32-23,447.34-9,917.64

Finding the Fourth Proportional to 16,987.32, 23,447.34 and 9,917.64

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Solution

The fourth proportional to 16,987.32, 23,447.34 and 9,917.64 is: 13,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,987.32 : 23,447.34 = 9,917.64 : x
  2. Step 2: Convert to fraction form
    16,987.32/23,447.34 = 9,917.64/x
  3. Step 3: Cross multiply
    16,987.32x = 23,447.34 × 9,917.64
  4. Step 4: Simplify right side
    16,987.32x = 232,542,277.08
  5. Step 5: Solve for x
    x = 232,542,277.08/16,987.32
  6. Step 6: Final answer
    x = 13,689.17

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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.