Home / 8,207.11-12,232.70-7,740.07

Finding the Fourth Proportional to 8,207.11, 12,232.70 and 7,740.07

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Solution

The fourth proportional to 8,207.11, 12,232.70 and 7,740.07 is: 11,536.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.11 : 12,232.70 = 7,740.07 : x
  2. Step 2: Convert to fraction form
    8,207.11/12,232.70 = 7,740.07/x
  3. Step 3: Cross multiply
    8,207.11x = 12,232.70 × 7,740.07
  4. Step 4: Simplify right side
    8,207.11x = 94,681,954.29
  5. Step 5: Solve for x
    x = 94,681,954.29/8,207.11
  6. Step 6: Final answer
    x = 11,536.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.