Home / 7,930.18-11,899.82-3,547.07

Finding the Fourth Proportional to 7,930.18, 11,899.82 and 3,547.07

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Solution

The fourth proportional to 7,930.18, 11,899.82 and 3,547.07 is: 5,322.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.18 : 11,899.82 = 3,547.07 : x
  2. Step 2: Convert to fraction form
    7,930.18/11,899.82 = 3,547.07/x
  3. Step 3: Cross multiply
    7,930.18x = 11,899.82 × 3,547.07
  4. Step 4: Simplify right side
    7,930.18x = 42,209,494.53
  5. Step 5: Solve for x
    x = 42,209,494.53/7,930.18
  6. Step 6: Final answer
    x = 5,322.64

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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.