Home / 13,666.43-18,859.56-7,699.16

Finding the Fourth Proportional to 13,666.43, 18,859.56 and 7,699.16

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Solution

The fourth proportional to 13,666.43, 18,859.56 and 7,699.16 is: 10,624.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.43 : 18,859.56 = 7,699.16 : x
  2. Step 2: Convert to fraction form
    13,666.43/18,859.56 = 7,699.16/x
  3. Step 3: Cross multiply
    13,666.43x = 18,859.56 × 7,699.16
  4. Step 4: Simplify right side
    13,666.43x = 145,202,769.97
  5. Step 5: Solve for x
    x = 145,202,769.97/13,666.43
  6. Step 6: Final answer
    x = 10,624.78

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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.