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Finding the Fourth Proportional to 12,756.60, 19,103.88 and 9,041.13

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Solution

The fourth proportional to 12,756.60, 19,103.88 and 9,041.13 is: 13,539.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.60 : 19,103.88 = 9,041.13 : x
  2. Step 2: Convert to fraction form
    12,756.60/19,103.88 = 9,041.13/x
  3. Step 3: Cross multiply
    12,756.60x = 19,103.88 × 9,041.13
  4. Step 4: Simplify right side
    12,756.60x = 172,720,662.58
  5. Step 5: Solve for x
    x = 172,720,662.58/12,756.60
  6. Step 6: Final answer
    x = 13,539.71

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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.