Home / 9,385.13-12,954.36-5,408.89

Finding the Fourth Proportional to 9,385.13, 12,954.36 and 5,408.89

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Solution

The fourth proportional to 9,385.13, 12,954.36 and 5,408.89 is: 7,465.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.13 : 12,954.36 = 5,408.89 : x
  2. Step 2: Convert to fraction form
    9,385.13/12,954.36 = 5,408.89/x
  3. Step 3: Cross multiply
    9,385.13x = 12,954.36 × 5,408.89
  4. Step 4: Simplify right side
    9,385.13x = 70,068,665.73
  5. Step 5: Solve for x
    x = 70,068,665.73/9,385.13
  6. Step 6: Final answer
    x = 7,465.93

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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.