Home / 13,512.45-18,647.91-7,544.24

Finding the Fourth Proportional to 13,512.45, 18,647.91 and 7,544.24

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Solution

The fourth proportional to 13,512.45, 18,647.91 and 7,544.24 is: 10,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.45 : 18,647.91 = 7,544.24 : x
  2. Step 2: Convert to fraction form
    13,512.45/18,647.91 = 7,544.24/x
  3. Step 3: Cross multiply
    13,512.45x = 18,647.91 × 7,544.24
  4. Step 4: Simplify right side
    13,512.45x = 140,684,215.30
  5. Step 5: Solve for x
    x = 140,684,215.30/13,512.45
  6. Step 6: Final answer
    x = 10,411.45

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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.