Home / 8,970.21-13,454.76-3,424.11

Finding the Fourth Proportional to 8,970.21, 13,454.76 and 3,424.11

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Solution

The fourth proportional to 8,970.21, 13,454.76 and 3,424.11 is: 5,135.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.21 : 13,454.76 = 3,424.11 : x
  2. Step 2: Convert to fraction form
    8,970.21/13,454.76 = 3,424.11/x
  3. Step 3: Cross multiply
    8,970.21x = 13,454.76 × 3,424.11
  4. Step 4: Simplify right side
    8,970.21x = 46,070,578.26
  5. Step 5: Solve for x
    x = 46,070,578.26/8,970.21
  6. Step 6: Final answer
    x = 5,135.95

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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.