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Finding the Fourth Proportional to 15,103.58, 20,839.16 and 9,054.77

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Solution

The fourth proportional to 15,103.58, 20,839.16 and 9,054.77 is: 12,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.58 : 20,839.16 = 9,054.77 : x
  2. Step 2: Convert to fraction form
    15,103.58/20,839.16 = 9,054.77/x
  3. Step 3: Cross multiply
    15,103.58x = 20,839.16 × 9,054.77
  4. Step 4: Simplify right side
    15,103.58x = 188,693,719.23
  5. Step 5: Solve for x
    x = 188,693,719.23/15,103.58
  6. Step 6: Final answer
    x = 12,493.31

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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.