Home / 10,853.28-14,971.68-6,872.94

Finding the Fourth Proportional to 10,853.28, 14,971.68 and 6,872.94

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Solution

The fourth proportional to 10,853.28, 14,971.68 and 6,872.94 is: 9,480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,853.28 : 14,971.68 = 6,872.94 : x
  2. Step 2: Convert to fraction form
    10,853.28/14,971.68 = 6,872.94/x
  3. Step 3: Cross multiply
    10,853.28x = 14,971.68 × 6,872.94
  4. Step 4: Simplify right side
    10,853.28x = 102,899,458.34
  5. Step 5: Solve for x
    x = 102,899,458.34/10,853.28
  6. Step 6: Final answer
    x = 9,480.95

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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.