Home / 14,217.13-21,300.16-8,370.55

Finding the Fourth Proportional to 14,217.13, 21,300.16 and 8,370.55

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Solution

The fourth proportional to 14,217.13, 21,300.16 and 8,370.55 is: 12,540.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,217.13 : 21,300.16 = 8,370.55 : x
  2. Step 2: Convert to fraction form
    14,217.13/21,300.16 = 8,370.55/x
  3. Step 3: Cross multiply
    14,217.13x = 21,300.16 × 8,370.55
  4. Step 4: Simplify right side
    14,217.13x = 178,294,054.29
  5. Step 5: Solve for x
    x = 178,294,054.29/14,217.13
  6. Step 6: Final answer
    x = 12,540.79

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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.