Home / 8,398.08-11,586.64-5,408.64

Finding the Fourth Proportional to 8,398.08, 11,586.64 and 5,408.64

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Solution

The fourth proportional to 8,398.08, 11,586.64 and 5,408.64 is: 7,462.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.08 : 11,586.64 = 5,408.64 : x
  2. Step 2: Convert to fraction form
    8,398.08/11,586.64 = 5,408.64/x
  3. Step 3: Cross multiply
    8,398.08x = 11,586.64 × 5,408.64
  4. Step 4: Simplify right side
    8,398.08x = 62,667,964.57
  5. Step 5: Solve for x
    x = 62,667,964.57/8,398.08
  6. Step 6: Final answer
    x = 7,462.18

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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.