Home / 13,479.76-20,208.12-5,277.52

Finding the Fourth Proportional to 13,479.76, 20,208.12 and 5,277.52

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Solution

The fourth proportional to 13,479.76, 20,208.12 and 5,277.52 is: 7,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.76 : 20,208.12 = 5,277.52 : x
  2. Step 2: Convert to fraction form
    13,479.76/20,208.12 = 5,277.52/x
  3. Step 3: Cross multiply
    13,479.76x = 20,208.12 × 5,277.52
  4. Step 4: Simplify right side
    13,479.76x = 106,648,757.46
  5. Step 5: Solve for x
    x = 106,648,757.46/13,479.76
  6. Step 6: Final answer
    x = 7,911.77

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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.