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Finding the Fourth Proportional to 25,386.06, 38,079.11 and 6,918.06

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Solution

The fourth proportional to 25,386.06, 38,079.11 and 6,918.06 is: 10,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,386.06 : 38,079.11 = 6,918.06 : x
  2. Step 2: Convert to fraction form
    25,386.06/38,079.11 = 6,918.06/x
  3. Step 3: Cross multiply
    25,386.06x = 38,079.11 × 6,918.06
  4. Step 4: Simplify right side
    25,386.06x = 263,433,567.73
  5. Step 5: Solve for x
    x = 263,433,567.73/25,386.06
  6. Step 6: Final answer
    x = 10,377.10

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1.5x scale

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.