Home / 14,643.38-20,208.21-8,356.34

Finding the Fourth Proportional to 14,643.38, 20,208.21 and 8,356.34

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Solution

The fourth proportional to 14,643.38, 20,208.21 and 8,356.34 is: 11,531.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,643.38 : 20,208.21 = 8,356.34 : x
  2. Step 2: Convert to fraction form
    14,643.38/20,208.21 = 8,356.34/x
  3. Step 3: Cross multiply
    14,643.38x = 20,208.21 × 8,356.34
  4. Step 4: Simplify right side
    14,643.38x = 168,866,673.55
  5. Step 5: Solve for x
    x = 168,866,673.55/14,643.38
  6. Step 6: Final answer
    x = 11,531.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.