Home / 9,207.81-12,706.22-5,431.14

Finding the Fourth Proportional to 9,207.81, 12,706.22 and 5,431.14

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Solution

The fourth proportional to 9,207.81, 12,706.22 and 5,431.14 is: 7,494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,207.81 : 12,706.22 = 5,431.14 : x
  2. Step 2: Convert to fraction form
    9,207.81/12,706.22 = 5,431.14/x
  3. Step 3: Cross multiply
    9,207.81x = 12,706.22 × 5,431.14
  4. Step 4: Simplify right side
    9,207.81x = 69,009,273.27
  5. Step 5: Solve for x
    x = 69,009,273.27/9,207.81
  6. Step 6: Final answer
    x = 7,494.65

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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.