Home / 9,512.39-13,128.90-6,374.03

Finding the Fourth Proportional to 9,512.39, 13,128.90 and 6,374.03

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Solution

The fourth proportional to 9,512.39, 13,128.90 and 6,374.03 is: 8,797.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,512.39 : 13,128.90 = 6,374.03 : x
  2. Step 2: Convert to fraction form
    9,512.39/13,128.90 = 6,374.03/x
  3. Step 3: Cross multiply
    9,512.39x = 13,128.90 × 6,374.03
  4. Step 4: Simplify right side
    9,512.39x = 83,684,002.47
  5. Step 5: Solve for x
    x = 83,684,002.47/9,512.39
  6. Step 6: Final answer
    x = 8,797.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.