Home / 14,203.17-21,310.20-5,438.70

Finding the Fourth Proportional to 14,203.17, 21,310.20 and 5,438.70

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Solution

The fourth proportional to 14,203.17, 21,310.20 and 5,438.70 is: 8,160.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,203.17 : 21,310.20 = 5,438.70 : x
  2. Step 2: Convert to fraction form
    14,203.17/21,310.20 = 5,438.70/x
  3. Step 3: Cross multiply
    14,203.17x = 21,310.20 × 5,438.70
  4. Step 4: Simplify right side
    14,203.17x = 115,899,784.74
  5. Step 5: Solve for x
    x = 115,899,784.74/14,203.17
  6. Step 6: Final answer
    x = 8,160.14

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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.