Home / 8,949.16-13,421-4,266.70

Finding the Fourth Proportional to 8,949.16, 13,421 and 4,266.70

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Solution

The fourth proportional to 8,949.16, 13,421 and 4,266.70 is: 6,398.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.16 : 13,421 = 4,266.70 : x
  2. Step 2: Convert to fraction form
    8,949.16/13,421 = 4,266.70/x
  3. Step 3: Cross multiply
    8,949.16x = 13,421 × 4,266.70
  4. Step 4: Simplify right side
    8,949.16x = 57,263,380.70
  5. Step 5: Solve for x
    x = 57,263,380.70/8,949.16
  6. Step 6: Final answer
    x = 6,398.74

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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.