Home / 14,097.80-21,137.10-5,331.40

Finding the Fourth Proportional to 14,097.80, 21,137.10 and 5,331.40

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Solution

The fourth proportional to 14,097.80, 21,137.10 and 5,331.40 is: 7,993.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,097.80 : 21,137.10 = 5,331.40 : x
  2. Step 2: Convert to fraction form
    14,097.80/21,137.10 = 5,331.40/x
  3. Step 3: Cross multiply
    14,097.80x = 21,137.10 × 5,331.40
  4. Step 4: Simplify right side
    14,097.80x = 112,690,334.94
  5. Step 5: Solve for x
    x = 112,690,334.94/14,097.80
  6. Step 6: Final answer
    x = 7,993.47

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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.