Home / 14,138.67-21,203.10-4,275.30

Finding the Fourth Proportional to 14,138.67, 21,203.10 and 4,275.30

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Solution

The fourth proportional to 14,138.67, 21,203.10 and 4,275.30 is: 6,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.67 : 21,203.10 = 4,275.30 : x
  2. Step 2: Convert to fraction form
    14,138.67/21,203.10 = 4,275.30/x
  3. Step 3: Cross multiply
    14,138.67x = 21,203.10 × 4,275.30
  4. Step 4: Simplify right side
    14,138.67x = 90,649,613.43
  5. Step 5: Solve for x
    x = 90,649,613.43/14,138.67
  6. Step 6: Final answer
    x = 6,411.47

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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.