Home / 16,979.42-23,415.27-13,197.17

Finding the Fourth Proportional to 16,979.42, 23,415.27 and 13,197.17

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Solution

The fourth proportional to 16,979.42, 23,415.27 and 13,197.17 is: 18,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979.42 : 23,415.27 = 13,197.17 : x
  2. Step 2: Convert to fraction form
    16,979.42/23,415.27 = 13,197.17/x
  3. Step 3: Cross multiply
    16,979.42x = 23,415.27 × 13,197.17
  4. Step 4: Simplify right side
    16,979.42x = 309,015,298.79
  5. Step 5: Solve for x
    x = 309,015,298.79/16,979.42
  6. Step 6: Final answer
    x = 18,199.40

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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.