Home / 17,140.80-25,700.10-7,277.40

Finding the Fourth Proportional to 17,140.80, 25,700.10 and 7,277.40

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Solution

The fourth proportional to 17,140.80, 25,700.10 and 7,277.40 is: 10,911.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,140.80 : 25,700.10 = 7,277.40 : x
  2. Step 2: Convert to fraction form
    17,140.80/25,700.10 = 7,277.40/x
  3. Step 3: Cross multiply
    17,140.80x = 25,700.10 × 7,277.40
  4. Step 4: Simplify right side
    17,140.80x = 187,029,907.74
  5. Step 5: Solve for x
    x = 187,029,907.74/17,140.80
  6. Step 6: Final answer
    x = 10,911.39

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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.