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Finding the Fourth Proportional to 13,476, 18,597.12 and 7,886.88

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Solution

The fourth proportional to 13,476, 18,597.12 and 7,886.88 is: 10,884.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476 : 18,597.12 = 7,886.88 : x
  2. Step 2: Convert to fraction form
    13,476/18,597.12 = 7,886.88/x
  3. Step 3: Cross multiply
    13,476x = 18,597.12 × 7,886.88
  4. Step 4: Simplify right side
    13,476x = 146,673,253.79
  5. Step 5: Solve for x
    x = 146,673,253.79/13,476
  6. Step 6: Final answer
    x = 10,884.03

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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.