Home / 8,438.32-11,644.74-4,901.56

Finding the Fourth Proportional to 8,438.32, 11,644.74 and 4,901.56

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Solution

The fourth proportional to 8,438.32, 11,644.74 and 4,901.56 is: 6,764.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.32 : 11,644.74 = 4,901.56 : x
  2. Step 2: Convert to fraction form
    8,438.32/11,644.74 = 4,901.56/x
  3. Step 3: Cross multiply
    8,438.32x = 11,644.74 × 4,901.56
  4. Step 4: Simplify right side
    8,438.32x = 57,077,391.79
  5. Step 5: Solve for x
    x = 57,077,391.79/8,438.32
  6. Step 6: Final answer
    x = 6,764.07

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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.