Home / 15,460.84-23,172.30-7,129.12

Finding the Fourth Proportional to 15,460.84, 23,172.30 and 7,129.12

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Solution

The fourth proportional to 15,460.84, 23,172.30 and 7,129.12 is: 10,684.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.84 : 23,172.30 = 7,129.12 : x
  2. Step 2: Convert to fraction form
    15,460.84/23,172.30 = 7,129.12/x
  3. Step 3: Cross multiply
    15,460.84x = 23,172.30 × 7,129.12
  4. Step 4: Simplify right side
    15,460.84x = 165,198,107.38
  5. Step 5: Solve for x
    x = 165,198,107.38/15,460.84
  6. Step 6: Final answer
    x = 10,684.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.