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Finding the Fourth Proportional to 14,574.71, 20,114.20 and 8,910.53

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Solution

The fourth proportional to 14,574.71, 20,114.20 and 8,910.53 is: 12,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.71 : 20,114.20 = 8,910.53 : x
  2. Step 2: Convert to fraction form
    14,574.71/20,114.20 = 8,910.53/x
  3. Step 3: Cross multiply
    14,574.71x = 20,114.20 × 8,910.53
  4. Step 4: Simplify right side
    14,574.71x = 179,228,182.53
  5. Step 5: Solve for x
    x = 179,228,182.53/14,574.71
  6. Step 6: Final answer
    x = 12,297.20

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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.