Home / 7,161.89-9,882.13-4,136.32

Finding the Fourth Proportional to 7,161.89, 9,882.13 and 4,136.32

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Solution

The fourth proportional to 7,161.89, 9,882.13 and 4,136.32 is: 5,707.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.89 : 9,882.13 = 4,136.32 : x
  2. Step 2: Convert to fraction form
    7,161.89/9,882.13 = 4,136.32/x
  3. Step 3: Cross multiply
    7,161.89x = 9,882.13 × 4,136.32
  4. Step 4: Simplify right side
    7,161.89x = 40,875,594.51
  5. Step 5: Solve for x
    x = 40,875,594.51/7,161.89
  6. Step 6: Final answer
    x = 5,707.37

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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.