Home / 17,665.12-26,500.88-7,271.20

Finding the Fourth Proportional to 17,665.12, 26,500.88 and 7,271.20

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Solution

The fourth proportional to 17,665.12, 26,500.88 and 7,271.20 is: 10,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,665.12 : 26,500.88 = 7,271.20 : x
  2. Step 2: Convert to fraction form
    17,665.12/26,500.88 = 7,271.20/x
  3. Step 3: Cross multiply
    17,665.12x = 26,500.88 × 7,271.20
  4. Step 4: Simplify right side
    17,665.12x = 192,693,198.66
  5. Step 5: Solve for x
    x = 192,693,198.66/17,665.12
  6. Step 6: Final answer
    x = 10,908.12

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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.