Home / 13,646.86-20,478.18-5,748.82

Finding the Fourth Proportional to 13,646.86, 20,478.18 and 5,748.82

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Solution

The fourth proportional to 13,646.86, 20,478.18 and 5,748.82 is: 8,626.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.86 : 20,478.18 = 5,748.82 : x
  2. Step 2: Convert to fraction form
    13,646.86/20,478.18 = 5,748.82/x
  3. Step 3: Cross multiply
    13,646.86x = 20,478.18 × 5,748.82
  4. Step 4: Simplify right side
    13,646.86x = 117,725,370.75
  5. Step 5: Solve for x
    x = 117,725,370.75/13,646.86
  6. Step 6: Final answer
    x = 8,626.55

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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.