Home / 9,330.22-12,875.79-5,138.62

Finding the Fourth Proportional to 9,330.22, 12,875.79 and 5,138.62

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Solution

The fourth proportional to 9,330.22, 12,875.79 and 5,138.62 is: 7,091.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330.22 : 12,875.79 = 5,138.62 : x
  2. Step 2: Convert to fraction form
    9,330.22/12,875.79 = 5,138.62/x
  3. Step 3: Cross multiply
    9,330.22x = 12,875.79 × 5,138.62
  4. Step 4: Simplify right side
    9,330.22x = 66,163,792.01
  5. Step 5: Solve for x
    x = 66,163,792.01/9,330.22
  6. Step 6: Final answer
    x = 7,091.34

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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.