Home / 15,849.45-21,868.74-9,475.11

Finding the Fourth Proportional to 15,849.45, 21,868.74 and 9,475.11

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Solution

The fourth proportional to 15,849.45, 21,868.74 and 9,475.11 is: 13,073.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,849.45 : 21,868.74 = 9,475.11 : x
  2. Step 2: Convert to fraction form
    15,849.45/21,868.74 = 9,475.11/x
  3. Step 3: Cross multiply
    15,849.45x = 21,868.74 × 9,475.11
  4. Step 4: Simplify right side
    15,849.45x = 207,208,717.06
  5. Step 5: Solve for x
    x = 207,208,717.06/15,849.45
  6. Step 6: Final answer
    x = 13,073.56

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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.