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Finding the Fourth Proportional to 13,306.76, 19,842.76 and 12,652.73

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Solution

The fourth proportional to 13,306.76, 19,842.76 and 12,652.73 is: 18,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.76 : 19,842.76 = 12,652.73 : x
  2. Step 2: Convert to fraction form
    13,306.76/19,842.76 = 12,652.73/x
  3. Step 3: Cross multiply
    13,306.76x = 19,842.76 × 12,652.73
  4. Step 4: Simplify right side
    13,306.76x = 251,065,021.47
  5. Step 5: Solve for x
    x = 251,065,021.47/13,306.76
  6. Step 6: Final answer
    x = 18,867.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.