Home / 9,135.71-12,607.34-5,361.11

Finding the Fourth Proportional to 9,135.71, 12,607.34 and 5,361.11

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Solution

The fourth proportional to 9,135.71, 12,607.34 and 5,361.11 is: 7,398.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.71 : 12,607.34 = 5,361.11 : x
  2. Step 2: Convert to fraction form
    9,135.71/12,607.34 = 5,361.11/x
  3. Step 3: Cross multiply
    9,135.71x = 12,607.34 × 5,361.11
  4. Step 4: Simplify right side
    9,135.71x = 67,589,246.71
  5. Step 5: Solve for x
    x = 67,589,246.71/9,135.71
  6. Step 6: Final answer
    x = 7,398.36

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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.