Home / 8,918.66-13,377.93-6,972.50

Finding the Fourth Proportional to 8,918.66, 13,377.93 and 6,972.50

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Solution

The fourth proportional to 8,918.66, 13,377.93 and 6,972.50 is: 10,458.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.66 : 13,377.93 = 6,972.50 : x
  2. Step 2: Convert to fraction form
    8,918.66/13,377.93 = 6,972.50/x
  3. Step 3: Cross multiply
    8,918.66x = 13,377.93 × 6,972.50
  4. Step 4: Simplify right side
    8,918.66x = 93,277,616.93
  5. Step 5: Solve for x
    x = 93,277,616.93/8,918.66
  6. Step 6: Final answer
    x = 10,458.70

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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.