Home / 19,778.88-29,669.23-11,007.19

Finding the Fourth Proportional to 19,778.88, 29,669.23 and 11,007.19

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Solution

The fourth proportional to 19,778.88, 29,669.23 and 11,007.19 is: 16,511.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.88 : 29,669.23 = 11,007.19 : x
  2. Step 2: Convert to fraction form
    19,778.88/29,669.23 = 11,007.19/x
  3. Step 3: Cross multiply
    19,778.88x = 29,669.23 × 11,007.19
  4. Step 4: Simplify right side
    19,778.88x = 326,574,703.42
  5. Step 5: Solve for x
    x = 326,574,703.42/19,778.88
  6. Step 6: Final answer
    x = 16,511.28

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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.