Home / 8,240.23-11,376.35-5,412.12

Finding the Fourth Proportional to 8,240.23, 11,376.35 and 5,412.12

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Solution

The fourth proportional to 8,240.23, 11,376.35 and 5,412.12 is: 7,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.23 : 11,376.35 = 5,412.12 : x
  2. Step 2: Convert to fraction form
    8,240.23/11,376.35 = 5,412.12/x
  3. Step 3: Cross multiply
    8,240.23x = 11,376.35 × 5,412.12
  4. Step 4: Simplify right side
    8,240.23x = 61,570,171.36
  5. Step 5: Solve for x
    x = 61,570,171.36/8,240.23
  6. Step 6: Final answer
    x = 7,471.90

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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.