Home / 8,291.42-11,438.52-5,455.14

Finding the Fourth Proportional to 8,291.42, 11,438.52 and 5,455.14

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Solution

The fourth proportional to 8,291.42, 11,438.52 and 5,455.14 is: 7,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.42 : 11,438.52 = 5,455.14 : x
  2. Step 2: Convert to fraction form
    8,291.42/11,438.52 = 5,455.14/x
  3. Step 3: Cross multiply
    8,291.42x = 11,438.52 × 5,455.14
  4. Step 4: Simplify right side
    8,291.42x = 62,398,727.99
  5. Step 5: Solve for x
    x = 62,398,727.99/8,291.42
  6. Step 6: Final answer
    x = 7,525.70

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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.