Home / 13,928.71-20,888.88-4,065.34

Finding the Fourth Proportional to 13,928.71, 20,888.88 and 4,065.34

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Solution

The fourth proportional to 13,928.71, 20,888.88 and 4,065.34 is: 6,096.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.71 : 20,888.88 = 4,065.34 : x
  2. Step 2: Convert to fraction form
    13,928.71/20,888.88 = 4,065.34/x
  3. Step 3: Cross multiply
    13,928.71x = 20,888.88 × 4,065.34
  4. Step 4: Simplify right side
    13,928.71x = 84,920,399.42
  5. Step 5: Solve for x
    x = 84,920,399.42/13,928.71
  6. Step 6: Final answer
    x = 6,096.79

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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.