Home / 7,688.97-11,533.32-2,142.63

Finding the Fourth Proportional to 7,688.97, 11,533.32 and 2,142.63

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Solution

The fourth proportional to 7,688.97, 11,533.32 and 2,142.63 is: 3,213.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.97 : 11,533.32 = 2,142.63 : x
  2. Step 2: Convert to fraction form
    7,688.97/11,533.32 = 2,142.63/x
  3. Step 3: Cross multiply
    7,688.97x = 11,533.32 × 2,142.63
  4. Step 4: Simplify right side
    7,688.97x = 24,711,637.43
  5. Step 5: Solve for x
    x = 24,711,637.43/7,688.97
  6. Step 6: Final answer
    x = 3,213.91

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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.