Home / 16,868.61-23,278.95-9,315.27

Finding the Fourth Proportional to 16,868.61, 23,278.95 and 9,315.27

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Solution

The fourth proportional to 16,868.61, 23,278.95 and 9,315.27 is: 12,855.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,868.61 : 23,278.95 = 9,315.27 : x
  2. Step 2: Convert to fraction form
    16,868.61/23,278.95 = 9,315.27/x
  3. Step 3: Cross multiply
    16,868.61x = 23,278.95 × 9,315.27
  4. Step 4: Simplify right side
    16,868.61x = 216,849,704.57
  5. Step 5: Solve for x
    x = 216,849,704.57/16,868.61
  6. Step 6: Final answer
    x = 12,855.22

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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.