Home / 10,236.78-14,121.54-6,880.32

Finding the Fourth Proportional to 10,236.78, 14,121.54 and 6,880.32

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Solution

The fourth proportional to 10,236.78, 14,121.54 and 6,880.32 is: 9,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,236.78 : 14,121.54 = 6,880.32 : x
  2. Step 2: Convert to fraction form
    10,236.78/14,121.54 = 6,880.32/x
  3. Step 3: Cross multiply
    10,236.78x = 14,121.54 × 6,880.32
  4. Step 4: Simplify right side
    10,236.78x = 97,160,714.09
  5. Step 5: Solve for x
    x = 97,160,714.09/10,236.78
  6. Step 6: Final answer
    x = 9,491.34

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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.