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Finding the Fourth Proportional to 14,642.12, 20,202.54 and 8,673.50

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Solution

The fourth proportional to 14,642.12, 20,202.54 and 8,673.50 is: 11,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,642.12 : 20,202.54 = 8,673.50 : x
  2. Step 2: Convert to fraction form
    14,642.12/20,202.54 = 8,673.50/x
  3. Step 3: Cross multiply
    14,642.12x = 20,202.54 × 8,673.50
  4. Step 4: Simplify right side
    14,642.12x = 175,226,730.69
  5. Step 5: Solve for x
    x = 175,226,730.69/14,642.12
  6. Step 6: Final answer
    x = 11,967.31

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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.