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Finding the Fourth Proportional to 17,365.20, 26,041.40 and 5,678.80

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Solution

The fourth proportional to 17,365.20, 26,041.40 and 5,678.80 is: 8,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,365.20 : 26,041.40 = 5,678.80 : x
  2. Step 2: Convert to fraction form
    17,365.20/26,041.40 = 5,678.80/x
  3. Step 3: Cross multiply
    17,365.20x = 26,041.40 × 5,678.80
  4. Step 4: Simplify right side
    17,365.20x = 147,883,902.32
  5. Step 5: Solve for x
    x = 147,883,902.32/17,365.20
  6. Step 6: Final answer
    x = 8,516.11

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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.