Home / 10,878.32-15,011.78-6,164.12

Finding the Fourth Proportional to 10,878.32, 15,011.78 and 6,164.12

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Solution

The fourth proportional to 10,878.32, 15,011.78 and 6,164.12 is: 8,506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.32 : 15,011.78 = 6,164.12 : x
  2. Step 2: Convert to fraction form
    10,878.32/15,011.78 = 6,164.12/x
  3. Step 3: Cross multiply
    10,878.32x = 15,011.78 × 6,164.12
  4. Step 4: Simplify right side
    10,878.32x = 92,534,413.33
  5. Step 5: Solve for x
    x = 92,534,413.33/10,878.32
  6. Step 6: Final answer
    x = 8,506.31

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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.