Home / 8,705.12-13,032.12-5,408.22

Finding the Fourth Proportional to 8,705.12, 13,032.12 and 5,408.22

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Solution

The fourth proportional to 8,705.12, 13,032.12 and 5,408.22 is: 8,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.12 : 13,032.12 = 5,408.22 : x
  2. Step 2: Convert to fraction form
    8,705.12/13,032.12 = 5,408.22/x
  3. Step 3: Cross multiply
    8,705.12x = 13,032.12 × 5,408.22
  4. Step 4: Simplify right side
    8,705.12x = 70,480,572.03
  5. Step 5: Solve for x
    x = 70,480,572.03/8,705.12
  6. Step 6: Final answer
    x = 8,096.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.