Home / 9,439.11-14,160.36-3,889.41

Finding the Fourth Proportional to 9,439.11, 14,160.36 and 3,889.41

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Solution

The fourth proportional to 9,439.11, 14,160.36 and 3,889.41 is: 5,834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.11 : 14,160.36 = 3,889.41 : x
  2. Step 2: Convert to fraction form
    9,439.11/14,160.36 = 3,889.41/x
  3. Step 3: Cross multiply
    9,439.11x = 14,160.36 × 3,889.41
  4. Step 4: Simplify right side
    9,439.11x = 55,075,445.79
  5. Step 5: Solve for x
    x = 55,075,445.79/9,439.11
  6. Step 6: Final answer
    x = 5,834.81

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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.