Home / 10,056.64-13,872.54-6,415.87

Finding the Fourth Proportional to 10,056.64, 13,872.54 and 6,415.87

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Solution

The fourth proportional to 10,056.64, 13,872.54 and 6,415.87 is: 8,850.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,056.64 : 13,872.54 = 6,415.87 : x
  2. Step 2: Convert to fraction form
    10,056.64/13,872.54 = 6,415.87/x
  3. Step 3: Cross multiply
    10,056.64x = 13,872.54 × 6,415.87
  4. Step 4: Simplify right side
    10,056.64x = 89,004,413.21
  5. Step 5: Solve for x
    x = 89,004,413.21/10,056.64
  6. Step 6: Final answer
    x = 8,850.31

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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.