Home / 14,102.18-21,155.13-5,216.30

Finding the Fourth Proportional to 14,102.18, 21,155.13 and 5,216.30

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Solution

The fourth proportional to 14,102.18, 21,155.13 and 5,216.30 is: 7,825.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.18 : 21,155.13 = 5,216.30 : x
  2. Step 2: Convert to fraction form
    14,102.18/21,155.13 = 5,216.30/x
  3. Step 3: Cross multiply
    14,102.18x = 21,155.13 × 5,216.30
  4. Step 4: Simplify right side
    14,102.18x = 110,351,504.62
  5. Step 5: Solve for x
    x = 110,351,504.62/14,102.18
  6. Step 6: Final answer
    x = 7,825.14

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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.