Home / 14,152.72-19,530.79-7,779.96

Finding the Fourth Proportional to 14,152.72, 19,530.79 and 7,779.96

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Solution

The fourth proportional to 14,152.72, 19,530.79 and 7,779.96 is: 10,736.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,152.72 : 19,530.79 = 7,779.96 : x
  2. Step 2: Convert to fraction form
    14,152.72/19,530.79 = 7,779.96/x
  3. Step 3: Cross multiply
    14,152.72x = 19,530.79 × 7,779.96
  4. Step 4: Simplify right side
    14,152.72x = 151,948,764.97
  5. Step 5: Solve for x
    x = 151,948,764.97/14,152.72
  6. Step 6: Final answer
    x = 10,736.36

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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.