Home / 13,423.77-18,527.21-7,757.73

Finding the Fourth Proportional to 13,423.77, 18,527.21 and 7,757.73

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Solution

The fourth proportional to 13,423.77, 18,527.21 and 7,757.73 is: 10,707.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.77 : 18,527.21 = 7,757.73 : x
  2. Step 2: Convert to fraction form
    13,423.77/18,527.21 = 7,757.73/x
  3. Step 3: Cross multiply
    13,423.77x = 18,527.21 × 7,757.73
  4. Step 4: Simplify right side
    13,423.77x = 143,729,054.04
  5. Step 5: Solve for x
    x = 143,729,054.04/13,423.77
  6. Step 6: Final answer
    x = 10,707.06

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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.