Home / 14,099.34-19,456.92-7,811.58

Finding the Fourth Proportional to 14,099.34, 19,456.92 and 7,811.58

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Solution

The fourth proportional to 14,099.34, 19,456.92 and 7,811.58 is: 10,779.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.34 : 19,456.92 = 7,811.58 : x
  2. Step 2: Convert to fraction form
    14,099.34/19,456.92 = 7,811.58/x
  3. Step 3: Cross multiply
    14,099.34x = 19,456.92 × 7,811.58
  4. Step 4: Simplify right side
    14,099.34x = 151,989,287.13
  5. Step 5: Solve for x
    x = 151,989,287.13/14,099.34
  6. Step 6: Final answer
    x = 10,779.89

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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.