Home / 8,878.86-13,311.56-5,368.12

Finding the Fourth Proportional to 8,878.86, 13,311.56 and 5,368.12

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Solution

The fourth proportional to 8,878.86, 13,311.56 and 5,368.12 is: 8,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.86 : 13,311.56 = 5,368.12 : x
  2. Step 2: Convert to fraction form
    8,878.86/13,311.56 = 5,368.12/x
  3. Step 3: Cross multiply
    8,878.86x = 13,311.56 × 5,368.12
  4. Step 4: Simplify right side
    8,878.86x = 71,458,051.47
  5. Step 5: Solve for x
    x = 71,458,051.47/8,878.86
  6. Step 6: Final answer
    x = 8,048.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.