Home / 9,001.22-12,419.69-5,222.19

Finding the Fourth Proportional to 9,001.22, 12,419.69 and 5,222.19

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Solution

The fourth proportional to 9,001.22, 12,419.69 and 5,222.19 is: 7,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,001.22 : 12,419.69 = 5,222.19 : x
  2. Step 2: Convert to fraction form
    9,001.22/12,419.69 = 5,222.19/x
  3. Step 3: Cross multiply
    9,001.22x = 12,419.69 × 5,222.19
  4. Step 4: Simplify right side
    9,001.22x = 64,857,981.14
  5. Step 5: Solve for x
    x = 64,857,981.14/9,001.22
  6. Step 6: Final answer
    x = 7,205.47

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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.