Home / 16,687.11-23,027.16-9,970.59

Finding the Fourth Proportional to 16,687.11, 23,027.16 and 9,970.59

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Solution

The fourth proportional to 16,687.11, 23,027.16 and 9,970.59 is: 13,758.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,687.11 : 23,027.16 = 9,970.59 : x
  2. Step 2: Convert to fraction form
    16,687.11/23,027.16 = 9,970.59/x
  3. Step 3: Cross multiply
    16,687.11x = 23,027.16 × 9,970.59
  4. Step 4: Simplify right side
    16,687.11x = 229,594,371.22
  5. Step 5: Solve for x
    x = 229,594,371.22/16,687.11
  6. Step 6: Final answer
    x = 13,758.79

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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.