Home / 8,199.96-11,312.28-5,370.36

Finding the Fourth Proportional to 8,199.96, 11,312.28 and 5,370.36

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Solution

The fourth proportional to 8,199.96, 11,312.28 and 5,370.36 is: 7,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.96 : 11,312.28 = 5,370.36 : x
  2. Step 2: Convert to fraction form
    8,199.96/11,312.28 = 5,370.36/x
  3. Step 3: Cross multiply
    8,199.96x = 11,312.28 × 5,370.36
  4. Step 4: Simplify right side
    8,199.96x = 60,751,016.02
  5. Step 5: Solve for x
    x = 60,751,016.02/8,199.96
  6. Step 6: Final answer
    x = 7,408.70

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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.