Home / 14,189.02-21,261.45-5,419.15

Finding the Fourth Proportional to 14,189.02, 21,261.45 and 5,419.15

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Solution

The fourth proportional to 14,189.02, 21,261.45 and 5,419.15 is: 8,120.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.02 : 21,261.45 = 5,419.15 : x
  2. Step 2: Convert to fraction form
    14,189.02/21,261.45 = 5,419.15/x
  3. Step 3: Cross multiply
    14,189.02x = 21,261.45 × 5,419.15
  4. Step 4: Simplify right side
    14,189.02x = 115,218,953.94
  5. Step 5: Solve for x
    x = 115,218,953.94/14,189.02
  6. Step 6: Final answer
    x = 8,120.29

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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.