Home / 8,918.16-13,377.18-6,972

Finding the Fourth Proportional to 8,918.16, 13,377.18 and 6,972

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Solution

The fourth proportional to 8,918.16, 13,377.18 and 6,972 is: 10,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.16 : 13,377.18 = 6,972 : x
  2. Step 2: Convert to fraction form
    8,918.16/13,377.18 = 6,972/x
  3. Step 3: Cross multiply
    8,918.16x = 13,377.18 × 6,972
  4. Step 4: Simplify right side
    8,918.16x = 93,265,698.96
  5. Step 5: Solve for x
    x = 93,265,698.96/8,918.16
  6. Step 6: Final answer
    x = 10,457.95

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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.