Home / 15,933.38-21,986.12-8,762.10

Finding the Fourth Proportional to 15,933.38, 21,986.12 and 8,762.10

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Solution

The fourth proportional to 15,933.38, 21,986.12 and 8,762.10 is: 12,090.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.38 : 21,986.12 = 8,762.10 : x
  2. Step 2: Convert to fraction form
    15,933.38/21,986.12 = 8,762.10/x
  3. Step 3: Cross multiply
    15,933.38x = 21,986.12 × 8,762.10
  4. Step 4: Simplify right side
    15,933.38x = 192,644,582.05
  5. Step 5: Solve for x
    x = 192,644,582.05/15,933.38
  6. Step 6: Final answer
    x = 12,090.63

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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.