Home / 17,905.68-26,857.54-5,425.20

Finding the Fourth Proportional to 17,905.68, 26,857.54 and 5,425.20

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Solution

The fourth proportional to 17,905.68, 26,857.54 and 5,425.20 is: 8,137.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,905.68 : 26,857.54 = 5,425.20 : x
  2. Step 2: Convert to fraction form
    17,905.68/26,857.54 = 5,425.20/x
  3. Step 3: Cross multiply
    17,905.68x = 26,857.54 × 5,425.20
  4. Step 4: Simplify right side
    17,905.68x = 145,707,526.01
  5. Step 5: Solve for x
    x = 145,707,526.01/17,905.68
  6. Step 6: Final answer
    x = 8,137.50

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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.