Home / 11,354.70-15,670.85-6,878.32

Finding the Fourth Proportional to 11,354.70, 15,670.85 and 6,878.32

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Solution

The fourth proportional to 11,354.70, 15,670.85 and 6,878.32 is: 9,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,354.70 : 15,670.85 = 6,878.32 : x
  2. Step 2: Convert to fraction form
    11,354.70/15,670.85 = 6,878.32/x
  3. Step 3: Cross multiply
    11,354.70x = 15,670.85 × 6,878.32
  4. Step 4: Simplify right side
    11,354.70x = 107,789,120.97
  5. Step 5: Solve for x
    x = 107,789,120.97/11,354.70
  6. Step 6: Final answer
    x = 9,492.91

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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.