Home / 14,099.28-19,456.36-7,811.60

Finding the Fourth Proportional to 14,099.28, 19,456.36 and 7,811.60

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Solution

The fourth proportional to 14,099.28, 19,456.36 and 7,811.60 is: 10,779.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.28 : 19,456.36 = 7,811.60 : x
  2. Step 2: Convert to fraction form
    14,099.28/19,456.36 = 7,811.60/x
  3. Step 3: Cross multiply
    14,099.28x = 19,456.36 × 7,811.60
  4. Step 4: Simplify right side
    14,099.28x = 151,985,301.78
  5. Step 5: Solve for x
    x = 151,985,301.78/14,099.28
  6. Step 6: Final answer
    x = 10,779.65

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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.