Home / 13,626.72-18,800.16-7,657.44

Finding the Fourth Proportional to 13,626.72, 18,800.16 and 7,657.44

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Solution

The fourth proportional to 13,626.72, 18,800.16 and 7,657.44 is: 10,564.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.72 : 18,800.16 = 7,657.44 : x
  2. Step 2: Convert to fraction form
    13,626.72/18,800.16 = 7,657.44/x
  3. Step 3: Cross multiply
    13,626.72x = 18,800.16 × 7,657.44
  4. Step 4: Simplify right side
    13,626.72x = 143,961,097.19
  5. Step 5: Solve for x
    x = 143,961,097.19/13,626.72
  6. Step 6: Final answer
    x = 10,564.62

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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.