Home / 13,438.27-20,159.23-4,672.05

Finding the Fourth Proportional to 13,438.27, 20,159.23 and 4,672.05

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Solution

The fourth proportional to 13,438.27, 20,159.23 and 4,672.05 is: 7,008.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.27 : 20,159.23 = 4,672.05 : x
  2. Step 2: Convert to fraction form
    13,438.27/20,159.23 = 4,672.05/x
  3. Step 3: Cross multiply
    13,438.27x = 20,159.23 × 4,672.05
  4. Step 4: Simplify right side
    13,438.27x = 94,184,930.52
  5. Step 5: Solve for x
    x = 94,184,930.52/13,438.27
  6. Step 6: Final answer
    x = 7,008.71

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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.