Home / 13,518.50-20,277.66-3,658.79

Finding the Fourth Proportional to 13,518.50, 20,277.66 and 3,658.79

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Solution

The fourth proportional to 13,518.50, 20,277.66 and 3,658.79 is: 5,488.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.50 : 20,277.66 = 3,658.79 : x
  2. Step 2: Convert to fraction form
    13,518.50/20,277.66 = 3,658.79/x
  3. Step 3: Cross multiply
    13,518.50x = 20,277.66 × 3,658.79
  4. Step 4: Simplify right side
    13,518.50x = 74,191,699.63
  5. Step 5: Solve for x
    x = 74,191,699.63/13,518.50
  6. Step 6: Final answer
    x = 5,488.16

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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.