Home / 10,872.19-16,314.21-7,176.16

Finding the Fourth Proportional to 10,872.19, 16,314.21 and 7,176.16

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Solution

The fourth proportional to 10,872.19, 16,314.21 and 7,176.16 is: 10,768.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.19 : 16,314.21 = 7,176.16 : x
  2. Step 2: Convert to fraction form
    10,872.19/16,314.21 = 7,176.16/x
  3. Step 3: Cross multiply
    10,872.19x = 16,314.21 × 7,176.16
  4. Step 4: Simplify right side
    10,872.19x = 117,073,401.63
  5. Step 5: Solve for x
    x = 117,073,401.63/10,872.19
  6. Step 6: Final answer
    x = 10,768.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.