Home / 15,852.03-21,874.21-8,777.76

Finding the Fourth Proportional to 15,852.03, 21,874.21 and 8,777.76

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Solution

The fourth proportional to 15,852.03, 21,874.21 and 8,777.76 is: 12,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,852.03 : 21,874.21 = 8,777.76 : x
  2. Step 2: Convert to fraction form
    15,852.03/21,874.21 = 8,777.76/x
  3. Step 3: Cross multiply
    15,852.03x = 21,874.21 × 8,777.76
  4. Step 4: Simplify right side
    15,852.03x = 192,006,565.57
  5. Step 5: Solve for x
    x = 192,006,565.57/15,852.03
  6. Step 6: Final answer
    x = 12,112.43

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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.