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Finding the Fourth Proportional to 14,506.61, 20,030.42 and 11,144.09

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Solution

The fourth proportional to 14,506.61, 20,030.42 and 11,144.09 is: 15,387.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,506.61 : 20,030.42 = 11,144.09 : x
  2. Step 2: Convert to fraction form
    14,506.61/20,030.42 = 11,144.09/x
  3. Step 3: Cross multiply
    14,506.61x = 20,030.42 × 11,144.09
  4. Step 4: Simplify right side
    14,506.61x = 223,220,881.15
  5. Step 5: Solve for x
    x = 223,220,881.15/14,506.61
  6. Step 6: Final answer
    x = 15,387.53

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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.