Home / 14,155.02-21,233.25-5,390.64

Finding the Fourth Proportional to 14,155.02, 21,233.25 and 5,390.64

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Solution

The fourth proportional to 14,155.02, 21,233.25 and 5,390.64 is: 8,086.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.02 : 21,233.25 = 5,390.64 : x
  2. Step 2: Convert to fraction form
    14,155.02/21,233.25 = 5,390.64/x
  3. Step 3: Cross multiply
    14,155.02x = 21,233.25 × 5,390.64
  4. Step 4: Simplify right side
    14,155.02x = 114,460,806.78
  5. Step 5: Solve for x
    x = 114,460,806.78/14,155.02
  6. Step 6: Final answer
    x = 8,086.23

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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.