Home / 8,345.14-11,515.02-5,361.37

Finding the Fourth Proportional to 8,345.14, 11,515.02 and 5,361.37

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Solution

The fourth proportional to 8,345.14, 11,515.02 and 5,361.37 is: 7,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.14 : 11,515.02 = 5,361.37 : x
  2. Step 2: Convert to fraction form
    8,345.14/11,515.02 = 5,361.37/x
  3. Step 3: Cross multiply
    8,345.14x = 11,515.02 × 5,361.37
  4. Step 4: Simplify right side
    8,345.14x = 61,736,282.78
  5. Step 5: Solve for x
    x = 61,736,282.78/8,345.14
  6. Step 6: Final answer
    x = 7,397.87

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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.