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Finding the Fourth Proportional to 15,003.80, 22,513.80 and 6,239.60

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Solution

The fourth proportional to 15,003.80, 22,513.80 and 6,239.60 is: 9,362.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.80 : 22,513.80 = 6,239.60 : x
  2. Step 2: Convert to fraction form
    15,003.80/22,513.80 = 6,239.60/x
  3. Step 3: Cross multiply
    15,003.80x = 22,513.80 × 6,239.60
  4. Step 4: Simplify right side
    15,003.80x = 140,477,106.48
  5. Step 5: Solve for x
    x = 140,477,106.48/15,003.80
  6. Step 6: Final answer
    x = 9,362.77

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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.