Home / 14,644.29-20,208.80-8,356.53

Finding the Fourth Proportional to 14,644.29, 20,208.80 and 8,356.53

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Solution

The fourth proportional to 14,644.29, 20,208.80 and 8,356.53 is: 11,531.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,644.29 : 20,208.80 = 8,356.53 : x
  2. Step 2: Convert to fraction form
    14,644.29/20,208.80 = 8,356.53/x
  3. Step 3: Cross multiply
    14,644.29x = 20,208.80 × 8,356.53
  4. Step 4: Simplify right side
    14,644.29x = 168,875,401.68
  5. Step 5: Solve for x
    x = 168,875,401.68/14,644.29
  6. Step 6: Final answer
    x = 11,531.83

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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.