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Finding the Fourth Proportional to 10,011.76, 15,016.80 and 3,086.32

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Solution

The fourth proportional to 10,011.76, 15,016.80 and 3,086.32 is: 4,629.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.76 : 15,016.80 = 3,086.32 : x
  2. Step 2: Convert to fraction form
    10,011.76/15,016.80 = 3,086.32/x
  3. Step 3: Cross multiply
    10,011.76x = 15,016.80 × 3,086.32
  4. Step 4: Simplify right side
    10,011.76x = 46,346,650.18
  5. Step 5: Solve for x
    x = 46,346,650.18/10,011.76
  6. Step 6: Final answer
    x = 4,629.22

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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.