Home / 8,415.54-11,607.03-6,432.66

Finding the Fourth Proportional to 8,415.54, 11,607.03 and 6,432.66

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Solution

The fourth proportional to 8,415.54, 11,607.03 and 6,432.66 is: 8,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.54 : 11,607.03 = 6,432.66 : x
  2. Step 2: Convert to fraction form
    8,415.54/11,607.03 = 6,432.66/x
  3. Step 3: Cross multiply
    8,415.54x = 11,607.03 × 6,432.66
  4. Step 4: Simplify right side
    8,415.54x = 74,664,077.60
  5. Step 5: Solve for x
    x = 74,664,077.60/8,415.54
  6. Step 6: Final answer
    x = 8,872.17

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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.