Home / 8,823.07-12,171.25-7,146.37

Finding the Fourth Proportional to 8,823.07, 12,171.25 and 7,146.37

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Solution

The fourth proportional to 8,823.07, 12,171.25 and 7,146.37 is: 9,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,823.07 : 12,171.25 = 7,146.37 : x
  2. Step 2: Convert to fraction form
    8,823.07/12,171.25 = 7,146.37/x
  3. Step 3: Cross multiply
    8,823.07x = 12,171.25 × 7,146.37
  4. Step 4: Simplify right side
    8,823.07x = 86,980,239.81
  5. Step 5: Solve for x
    x = 86,980,239.81/8,823.07
  6. Step 6: Final answer
    x = 9,858.27

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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.