Home / 16,979.08-23,431.10-9,904.14

Finding the Fourth Proportional to 16,979.08, 23,431.10 and 9,904.14

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Solution

The fourth proportional to 16,979.08, 23,431.10 and 9,904.14 is: 13,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.08 : 23,431.10 = 9,904.14 : x
  2. Step 2: Convert to fraction form
    16,979.08/23,431.10 = 9,904.14/x
  3. Step 3: Cross multiply
    16,979.08x = 23,431.10 × 9,904.14
  4. Step 4: Simplify right side
    16,979.08x = 232,064,894.75
  5. Step 5: Solve for x
    x = 232,064,894.75/16,979.08
  6. Step 6: Final answer
    x = 13,667.70

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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.