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Finding the Fourth Proportional to 14,574.21, 20,103.03 and 8,605.53

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Solution

The fourth proportional to 14,574.21, 20,103.03 and 8,605.53 is: 11,870.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.21 : 20,103.03 = 8,605.53 : x
  2. Step 2: Convert to fraction form
    14,574.21/20,103.03 = 8,605.53/x
  3. Step 3: Cross multiply
    14,574.21x = 20,103.03 × 8,605.53
  4. Step 4: Simplify right side
    14,574.21x = 172,997,227.76
  5. Step 5: Solve for x
    x = 172,997,227.76/14,574.21
  6. Step 6: Final answer
    x = 11,870.09

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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.