Home / 17,515.74-26,274.57-7,128.54

Finding the Fourth Proportional to 17,515.74, 26,274.57 and 7,128.54

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Solution

The fourth proportional to 17,515.74, 26,274.57 and 7,128.54 is: 10,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,515.74 : 26,274.57 = 7,128.54 : x
  2. Step 2: Convert to fraction form
    17,515.74/26,274.57 = 7,128.54/x
  3. Step 3: Cross multiply
    17,515.74x = 26,274.57 × 7,128.54
  4. Step 4: Simplify right side
    17,515.74x = 187,299,323.23
  5. Step 5: Solve for x
    x = 187,299,323.23/17,515.74
  6. Step 6: Final answer
    x = 10,693.20

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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.