Home / 8,130.13-11,212.56-5,296.44

Finding the Fourth Proportional to 8,130.13, 11,212.56 and 5,296.44

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Solution

The fourth proportional to 8,130.13, 11,212.56 and 5,296.44 is: 7,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.13 : 11,212.56 = 5,296.44 : x
  2. Step 2: Convert to fraction form
    8,130.13/11,212.56 = 5,296.44/x
  3. Step 3: Cross multiply
    8,130.13x = 11,212.56 × 5,296.44
  4. Step 4: Simplify right side
    8,130.13x = 59,386,651.29
  5. Step 5: Solve for x
    x = 59,386,651.29/8,130.13
  6. Step 6: Final answer
    x = 7,304.51

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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.