Home / 15,501.22-21,391.84-9,212.38

Finding the Fourth Proportional to 15,501.22, 21,391.84 and 9,212.38

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Solution

The fourth proportional to 15,501.22, 21,391.84 and 9,212.38 is: 12,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,501.22 : 21,391.84 = 9,212.38 : x
  2. Step 2: Convert to fraction form
    15,501.22/21,391.84 = 9,212.38/x
  3. Step 3: Cross multiply
    15,501.22x = 21,391.84 × 9,212.38
  4. Step 4: Simplify right side
    15,501.22x = 197,069,758.98
  5. Step 5: Solve for x
    x = 197,069,758.98/15,501.22
  6. Step 6: Final answer
    x = 12,713.18

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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.