Home / 13,400.49-20,102.28-5,086.71

Finding the Fourth Proportional to 13,400.49, 20,102.28 and 5,086.71

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Solution

The fourth proportional to 13,400.49, 20,102.28 and 5,086.71 is: 7,630.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.49 : 20,102.28 = 5,086.71 : x
  2. Step 2: Convert to fraction form
    13,400.49/20,102.28 = 5,086.71/x
  3. Step 3: Cross multiply
    13,400.49x = 20,102.28 × 5,086.71
  4. Step 4: Simplify right side
    13,400.49x = 102,254,518.95
  5. Step 5: Solve for x
    x = 102,254,518.95/13,400.49
  6. Step 6: Final answer
    x = 7,630.66

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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.