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Finding the Fourth Proportional to 13,802.58, 20,597.79 and 12,326.28

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Solution

The fourth proportional to 13,802.58, 20,597.79 and 12,326.28 is: 18,394.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.58 : 20,597.79 = 12,326.28 : x
  2. Step 2: Convert to fraction form
    13,802.58/20,597.79 = 12,326.28/x
  3. Step 3: Cross multiply
    13,802.58x = 20,597.79 × 12,326.28
  4. Step 4: Simplify right side
    13,802.58x = 253,894,126.92
  5. Step 5: Solve for x
    x = 253,894,126.92/13,802.58
  6. Step 6: Final answer
    x = 18,394.69

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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.