Home / 13,632.07-20,438.53-5,305.07

Finding the Fourth Proportional to 13,632.07, 20,438.53 and 5,305.07

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Solution

The fourth proportional to 13,632.07, 20,438.53 and 5,305.07 is: 7,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.07 : 20,438.53 = 5,305.07 : x
  2. Step 2: Convert to fraction form
    13,632.07/20,438.53 = 5,305.07/x
  3. Step 3: Cross multiply
    13,632.07x = 20,438.53 × 5,305.07
  4. Step 4: Simplify right side
    13,632.07x = 108,427,832.35
  5. Step 5: Solve for x
    x = 108,427,832.35/13,632.07
  6. Step 6: Final answer
    x = 7,953.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.