Home / 13,609.68-20,412.54-4,247.52

Finding the Fourth Proportional to 13,609.68, 20,412.54 and 4,247.52

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Solution

The fourth proportional to 13,609.68, 20,412.54 and 4,247.52 is: 6,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.68 : 20,412.54 = 4,247.52 : x
  2. Step 2: Convert to fraction form
    13,609.68/20,412.54 = 4,247.52/x
  3. Step 3: Cross multiply
    13,609.68x = 20,412.54 × 4,247.52
  4. Step 4: Simplify right side
    13,609.68x = 86,702,671.90
  5. Step 5: Solve for x
    x = 86,702,671.90/13,609.68
  6. Step 6: Final answer
    x = 6,370.66

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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.