Home / 14,479.89-21,720.05-5,714.72

Finding the Fourth Proportional to 14,479.89, 21,720.05 and 5,714.72

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Solution

The fourth proportional to 14,479.89, 21,720.05 and 5,714.72 is: 8,572.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.89 : 21,720.05 = 5,714.72 : x
  2. Step 2: Convert to fraction form
    14,479.89/21,720.05 = 5,714.72/x
  3. Step 3: Cross multiply
    14,479.89x = 21,720.05 × 5,714.72
  4. Step 4: Simplify right side
    14,479.89x = 124,123,969.84
  5. Step 5: Solve for x
    x = 124,123,969.84/14,479.89
  6. Step 6: Final answer
    x = 8,572.16

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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.