Home / 14,478.21-21,712.68-4,615.18

Finding the Fourth Proportional to 14,478.21, 21,712.68 and 4,615.18

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Solution

The fourth proportional to 14,478.21, 21,712.68 and 4,615.18 is: 6,921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.21 : 21,712.68 = 4,615.18 : x
  2. Step 2: Convert to fraction form
    14,478.21/21,712.68 = 4,615.18/x
  3. Step 3: Cross multiply
    14,478.21x = 21,712.68 × 4,615.18
  4. Step 4: Simplify right side
    14,478.21x = 100,207,872.20
  5. Step 5: Solve for x
    x = 100,207,872.20/14,478.21
  6. Step 6: Final answer
    x = 6,921.29

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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.