Home / 16,973.78-23,426.62-9,900.20

Finding the Fourth Proportional to 16,973.78, 23,426.62 and 9,900.20

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Solution

The fourth proportional to 16,973.78, 23,426.62 and 9,900.20 is: 13,663.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,973.78 : 23,426.62 = 9,900.20 : x
  2. Step 2: Convert to fraction form
    16,973.78/23,426.62 = 9,900.20/x
  3. Step 3: Cross multiply
    16,973.78x = 23,426.62 × 9,900.20
  4. Step 4: Simplify right side
    16,973.78x = 231,928,257.14
  5. Step 5: Solve for x
    x = 231,928,257.14/16,973.78
  6. Step 6: Final answer
    x = 13,663.92

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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.