Home / 15,453.57-23,172.12-7,129.29

Finding the Fourth Proportional to 15,453.57, 23,172.12 and 7,129.29

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Solution

The fourth proportional to 15,453.57, 23,172.12 and 7,129.29 is: 10,690.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.57 : 23,172.12 = 7,129.29 : x
  2. Step 2: Convert to fraction form
    15,453.57/23,172.12 = 7,129.29/x
  3. Step 3: Cross multiply
    15,453.57x = 23,172.12 × 7,129.29
  4. Step 4: Simplify right side
    15,453.57x = 165,200,763.39
  5. Step 5: Solve for x
    x = 165,200,763.39/15,453.57
  6. Step 6: Final answer
    x = 10,690.14

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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.