Home / 9,134.13-12,605.10-5,408.13

Finding the Fourth Proportional to 9,134.13, 12,605.10 and 5,408.13

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Solution

The fourth proportional to 9,134.13, 12,605.10 and 5,408.13 is: 7,463.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.13 : 12,605.10 = 5,408.13 : x
  2. Step 2: Convert to fraction form
    9,134.13/12,605.10 = 5,408.13/x
  3. Step 3: Cross multiply
    9,134.13x = 12,605.10 × 5,408.13
  4. Step 4: Simplify right side
    9,134.13x = 68,170,019.46
  5. Step 5: Solve for x
    x = 68,170,019.46/9,134.13
  6. Step 6: Final answer
    x = 7,463.22

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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.