Home / 7,174.09-9,897.47-5,290.13

Finding the Fourth Proportional to 7,174.09, 9,897.47 and 5,290.13

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Solution

The fourth proportional to 7,174.09, 9,897.47 and 5,290.13 is: 7,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174.09 : 9,897.47 = 5,290.13 : x
  2. Step 2: Convert to fraction form
    7,174.09/9,897.47 = 5,290.13/x
  3. Step 3: Cross multiply
    7,174.09x = 9,897.47 × 5,290.13
  4. Step 4: Simplify right side
    7,174.09x = 52,358,902.97
  5. Step 5: Solve for x
    x = 52,358,902.97/7,174.09
  6. Step 6: Final answer
    x = 7,298.33

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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.