Home / 16,868.49-23,278.39-9,315.29

Finding the Fourth Proportional to 16,868.49, 23,278.39 and 9,315.29

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Solution

The fourth proportional to 16,868.49, 23,278.39 and 9,315.29 is: 12,855.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,868.49 : 23,278.39 = 9,315.29 : x
  2. Step 2: Convert to fraction form
    16,868.49/23,278.39 = 9,315.29/x
  3. Step 3: Cross multiply
    16,868.49x = 23,278.39 × 9,315.29
  4. Step 4: Simplify right side
    16,868.49x = 216,844,953.58
  5. Step 5: Solve for x
    x = 216,844,953.58/16,868.49
  6. Step 6: Final answer
    x = 12,855.03

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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.