Home / 16,918.50-23,358.12-10,871.19

Finding the Fourth Proportional to 16,918.50, 23,358.12 and 10,871.19

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Solution

The fourth proportional to 16,918.50, 23,358.12 and 10,871.19 is: 15,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.50 : 23,358.12 = 10,871.19 : x
  2. Step 2: Convert to fraction form
    16,918.50/23,358.12 = 10,871.19/x
  3. Step 3: Cross multiply
    16,918.50x = 23,358.12 × 10,871.19
  4. Step 4: Simplify right side
    16,918.50x = 253,930,560.56
  5. Step 5: Solve for x
    x = 253,930,560.56/16,918.50
  6. Step 6: Final answer
    x = 15,009.05

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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.