Home / 9,515.80-13,131.66-5,324.05

Finding the Fourth Proportional to 9,515.80, 13,131.66 and 5,324.05

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Solution

The fourth proportional to 9,515.80, 13,131.66 and 5,324.05 is: 7,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.80 : 13,131.66 = 5,324.05 : x
  2. Step 2: Convert to fraction form
    9,515.80/13,131.66 = 5,324.05/x
  3. Step 3: Cross multiply
    9,515.80x = 13,131.66 × 5,324.05
  4. Step 4: Simplify right side
    9,515.80x = 69,913,614.42
  5. Step 5: Solve for x
    x = 69,913,614.42/9,515.80
  6. Step 6: Final answer
    x = 7,347.11

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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.