Home / 13,378.28-20,071.38-4,614.08

Finding the Fourth Proportional to 13,378.28, 20,071.38 and 4,614.08

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Solution

The fourth proportional to 13,378.28, 20,071.38 and 4,614.08 is: 6,922.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.28 : 20,071.38 = 4,614.08 : x
  2. Step 2: Convert to fraction form
    13,378.28/20,071.38 = 4,614.08/x
  3. Step 3: Cross multiply
    13,378.28x = 20,071.38 × 4,614.08
  4. Step 4: Simplify right side
    13,378.28x = 92,610,953.03
  5. Step 5: Solve for x
    x = 92,610,953.03/13,378.28
  6. Step 6: Final answer
    x = 6,922.49

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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.