Home / 15,849.16-21,871.51-9,134.37

Finding the Fourth Proportional to 15,849.16, 21,871.51 and 9,134.37

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Solution

The fourth proportional to 15,849.16, 21,871.51 and 9,134.37 is: 12,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,849.16 : 21,871.51 = 9,134.37 : x
  2. Step 2: Convert to fraction form
    15,849.16/21,871.51 = 9,134.37/x
  3. Step 3: Cross multiply
    15,849.16x = 21,871.51 × 9,134.37
  4. Step 4: Simplify right side
    15,849.16x = 199,782,441.96
  5. Step 5: Solve for x
    x = 199,782,441.96/15,849.16
  6. Step 6: Final answer
    x = 12,605.24

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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.