Home / 16,979.07-23,431.11-9,904.13

Finding the Fourth Proportional to 16,979.07, 23,431.11 and 9,904.13

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Solution

The fourth proportional to 16,979.07, 23,431.11 and 9,904.13 is: 13,667.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.07 : 23,431.11 = 9,904.13 : x
  2. Step 2: Convert to fraction form
    16,979.07/23,431.11 = 9,904.13/x
  3. Step 3: Cross multiply
    16,979.07x = 23,431.11 × 9,904.13
  4. Step 4: Simplify right side
    16,979.07x = 232,064,642.33
  5. Step 5: Solve for x
    x = 232,064,642.33/16,979.07
  6. Step 6: Final answer
    x = 13,667.69

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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.