Home / 14,099.89-21,149.80-5,779.92

Finding the Fourth Proportional to 14,099.89, 21,149.80 and 5,779.92

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Solution

The fourth proportional to 14,099.89, 21,149.80 and 5,779.92 is: 8,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.89 : 21,149.80 = 5,779.92 : x
  2. Step 2: Convert to fraction form
    14,099.89/21,149.80 = 5,779.92/x
  3. Step 3: Cross multiply
    14,099.89x = 21,149.80 × 5,779.92
  4. Step 4: Simplify right side
    14,099.89x = 122,244,152.02
  5. Step 5: Solve for x
    x = 122,244,152.02/14,099.89
  6. Step 6: Final answer
    x = 8,669.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.