Home / 16,920.64-23,326.10-11,869.21

Finding the Fourth Proportional to 16,920.64, 23,326.10 and 11,869.21

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Solution

The fourth proportional to 16,920.64, 23,326.10 and 11,869.21 is: 16,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.64 : 23,326.10 = 11,869.21 : x
  2. Step 2: Convert to fraction form
    16,920.64/23,326.10 = 11,869.21/x
  3. Step 3: Cross multiply
    16,920.64x = 23,326.10 × 11,869.21
  4. Step 4: Simplify right side
    16,920.64x = 276,862,262.75
  5. Step 5: Solve for x
    x = 276,862,262.75/16,920.64
  6. Step 6: Final answer
    x = 16,362.40

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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.