Home / 15,932.34-21,986.05-8,762.20

Finding the Fourth Proportional to 15,932.34, 21,986.05 and 8,762.20

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Solution

The fourth proportional to 15,932.34, 21,986.05 and 8,762.20 is: 12,091.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,932.34 : 21,986.05 = 8,762.20 : x
  2. Step 2: Convert to fraction form
    15,932.34/21,986.05 = 8,762.20/x
  3. Step 3: Cross multiply
    15,932.34x = 21,986.05 × 8,762.20
  4. Step 4: Simplify right side
    15,932.34x = 192,646,090.44
  5. Step 5: Solve for x
    x = 192,646,090.44/15,932.34
  6. Step 6: Final answer
    x = 12,091.51

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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.