Home / 8,631.06-12,918.74-4,465.33

Finding the Fourth Proportional to 8,631.06, 12,918.74 and 4,465.33

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Solution

The fourth proportional to 8,631.06, 12,918.74 and 4,465.33 is: 6,683.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.06 : 12,918.74 = 4,465.33 : x
  2. Step 2: Convert to fraction form
    8,631.06/12,918.74 = 4,465.33/x
  3. Step 3: Cross multiply
    8,631.06x = 12,918.74 × 4,465.33
  4. Step 4: Simplify right side
    8,631.06x = 57,686,437.28
  5. Step 5: Solve for x
    x = 57,686,437.28/8,631.06
  6. Step 6: Final answer
    x = 6,683.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.