Home / 19,779.48-27,297-11,396.52

Finding the Fourth Proportional to 19,779.48, 27,297 and 11,396.52

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Solution

The fourth proportional to 19,779.48, 27,297 and 11,396.52 is: 15,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.48 : 27,297 = 11,396.52 : x
  2. Step 2: Convert to fraction form
    19,779.48/27,297 = 11,396.52/x
  3. Step 3: Cross multiply
    19,779.48x = 27,297 × 11,396.52
  4. Step 4: Simplify right side
    19,779.48x = 311,090,806.44
  5. Step 5: Solve for x
    x = 311,090,806.44/19,779.48
  6. Step 6: Final answer
    x = 15,727.96

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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.