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Finding the Fourth Proportional to 13,918.03, 20,878.02 and 5,598.09

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Solution

The fourth proportional to 13,918.03, 20,878.02 and 5,598.09 is: 8,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.03 : 20,878.02 = 5,598.09 : x
  2. Step 2: Convert to fraction form
    13,918.03/20,878.02 = 5,598.09/x
  3. Step 3: Cross multiply
    13,918.03x = 20,878.02 × 5,598.09
  4. Step 4: Simplify right side
    13,918.03x = 116,877,034.98
  5. Step 5: Solve for x
    x = 116,877,034.98/13,918.03
  6. Step 6: Final answer
    x = 8,397.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.