Home / 10,942.81-16,310.26-10,320.10

Finding the Fourth Proportional to 10,942.81, 16,310.26 and 10,320.10

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Solution

The fourth proportional to 10,942.81, 16,310.26 and 10,320.10 is: 15,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,942.81 : 16,310.26 = 10,320.10 : x
  2. Step 2: Convert to fraction form
    10,942.81/16,310.26 = 10,320.10/x
  3. Step 3: Cross multiply
    10,942.81x = 16,310.26 × 10,320.10
  4. Step 4: Simplify right side
    10,942.81x = 168,323,514.23
  5. Step 5: Solve for x
    x = 168,323,514.23/10,942.81
  6. Step 6: Final answer
    x = 15,382.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.