Home / 10,853.01-14,979.30-6,378.21

Finding the Fourth Proportional to 10,853.01, 14,979.30 and 6,378.21

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Solution

The fourth proportional to 10,853.01, 14,979.30 and 6,378.21 is: 8,803.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,853.01 : 14,979.30 = 6,378.21 : x
  2. Step 2: Convert to fraction form
    10,853.01/14,979.30 = 6,378.21/x
  3. Step 3: Cross multiply
    10,853.01x = 14,979.30 × 6,378.21
  4. Step 4: Simplify right side
    10,853.01x = 95,541,121.05
  5. Step 5: Solve for x
    x = 95,541,121.05/10,853.01
  6. Step 6: Final answer
    x = 8,803.19

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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.