Home / 13,664.43-18,856.80-7,697.16

Finding the Fourth Proportional to 13,664.43, 18,856.80 and 7,697.16

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Solution

The fourth proportional to 13,664.43, 18,856.80 and 7,697.16 is: 10,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.43 : 18,856.80 = 7,697.16 : x
  2. Step 2: Convert to fraction form
    13,664.43/18,856.80 = 7,697.16/x
  3. Step 3: Cross multiply
    13,664.43x = 18,856.80 × 7,697.16
  4. Step 4: Simplify right side
    13,664.43x = 145,143,806.69
  5. Step 5: Solve for x
    x = 145,143,806.69/13,664.43
  6. Step 6: Final answer
    x = 10,622.02

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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.