Home / 11,714.19-16,165.31-6,409.05

Finding the Fourth Proportional to 11,714.19, 16,165.31 and 6,409.05

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Solution

The fourth proportional to 11,714.19, 16,165.31 and 6,409.05 is: 8,844.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,714.19 : 16,165.31 = 6,409.05 : x
  2. Step 2: Convert to fraction form
    11,714.19/16,165.31 = 6,409.05/x
  3. Step 3: Cross multiply
    11,714.19x = 16,165.31 × 6,409.05
  4. Step 4: Simplify right side
    11,714.19x = 103,604,248.01
  5. Step 5: Solve for x
    x = 103,604,248.01/11,714.19
  6. Step 6: Final answer
    x = 8,844.34

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Half scale
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Double scale
Find fourth proportional to 11,715.19, 16,166.68 and 6,410.05
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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.