Home / 13,549.06-20,322.78-4,315.06

Finding the Fourth Proportional to 13,549.06, 20,322.78 and 4,315.06

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Solution

The fourth proportional to 13,549.06, 20,322.78 and 4,315.06 is: 6,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.06 : 20,322.78 = 4,315.06 : x
  2. Step 2: Convert to fraction form
    13,549.06/20,322.78 = 4,315.06/x
  3. Step 3: Cross multiply
    13,549.06x = 20,322.78 × 4,315.06
  4. Step 4: Simplify right side
    13,549.06x = 87,694,015.07
  5. Step 5: Solve for x
    x = 87,694,015.07/13,549.06
  6. Step 6: Final answer
    x = 6,472.33

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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.