Home / 13,513.48-20,272.38-4,748.68

Finding the Fourth Proportional to 13,513.48, 20,272.38 and 4,748.68

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Solution

The fourth proportional to 13,513.48, 20,272.38 and 4,748.68 is: 7,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.48 : 20,272.38 = 4,748.68 : x
  2. Step 2: Convert to fraction form
    13,513.48/20,272.38 = 4,748.68/x
  3. Step 3: Cross multiply
    13,513.48x = 20,272.38 × 4,748.68
  4. Step 4: Simplify right side
    13,513.48x = 96,267,045.46
  5. Step 5: Solve for x
    x = 96,267,045.46/13,513.48
  6. Step 6: Final answer
    x = 7,123.78

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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.