Home / 16,364.80-22,557.18-12,821.86

Finding the Fourth Proportional to 16,364.80, 22,557.18 and 12,821.86

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Solution

The fourth proportional to 16,364.80, 22,557.18 and 12,821.86 is: 17,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,364.80 : 22,557.18 = 12,821.86 : x
  2. Step 2: Convert to fraction form
    16,364.80/22,557.18 = 12,821.86/x
  3. Step 3: Cross multiply
    16,364.80x = 22,557.18 × 12,821.86
  4. Step 4: Simplify right side
    16,364.80x = 289,225,003.95
  5. Step 5: Solve for x
    x = 289,225,003.95/16,364.80
  6. Step 6: Final answer
    x = 17,673.60

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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.