Home / 8,942.16-12,331.14-5,403.36

Finding the Fourth Proportional to 8,942.16, 12,331.14 and 5,403.36

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Solution

The fourth proportional to 8,942.16, 12,331.14 and 5,403.36 is: 7,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.16 : 12,331.14 = 5,403.36 : x
  2. Step 2: Convert to fraction form
    8,942.16/12,331.14 = 5,403.36/x
  3. Step 3: Cross multiply
    8,942.16x = 12,331.14 × 5,403.36
  4. Step 4: Simplify right side
    8,942.16x = 66,629,588.63
  5. Step 5: Solve for x
    x = 66,629,588.63/8,942.16
  6. Step 6: Final answer
    x = 7,451.17

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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.