Home / 8,440.64-11,634.84-5,783.48

Finding the Fourth Proportional to 8,440.64, 11,634.84 and 5,783.48

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Solution

The fourth proportional to 8,440.64, 11,634.84 and 5,783.48 is: 7,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.64 : 11,634.84 = 5,783.48 : x
  2. Step 2: Convert to fraction form
    8,440.64/11,634.84 = 5,783.48/x
  3. Step 3: Cross multiply
    8,440.64x = 11,634.84 × 5,783.48
  4. Step 4: Simplify right side
    8,440.64x = 67,289,864.44
  5. Step 5: Solve for x
    x = 67,289,864.44/8,440.64
  6. Step 6: Final answer
    x = 7,972.13

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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.