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Finding the Fourth Proportional to 15,219.39, 22,807.62 and 8,980.77

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Solution

The fourth proportional to 15,219.39, 22,807.62 and 8,980.77 is: 13,458.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219.39 : 22,807.62 = 8,980.77 : x
  2. Step 2: Convert to fraction form
    15,219.39/22,807.62 = 8,980.77/x
  3. Step 3: Cross multiply
    15,219.39x = 22,807.62 × 8,980.77
  4. Step 4: Simplify right side
    15,219.39x = 204,829,989.47
  5. Step 5: Solve for x
    x = 204,829,989.47/15,219.39
  6. Step 6: Final answer
    x = 13,458.49

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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.