Home / 19,788.40-29,683.48-11,016.72

Finding the Fourth Proportional to 19,788.40, 29,683.48 and 11,016.72

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Solution

The fourth proportional to 19,788.40, 29,683.48 and 11,016.72 is: 16,525.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.40 : 29,683.48 = 11,016.72 : x
  2. Step 2: Convert to fraction form
    19,788.40/29,683.48 = 11,016.72/x
  3. Step 3: Cross multiply
    19,788.40x = 29,683.48 × 11,016.72
  4. Step 4: Simplify right side
    19,788.40x = 327,014,587.79
  5. Step 5: Solve for x
    x = 327,014,587.79/19,788.40
  6. Step 6: Final answer
    x = 16,525.57

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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.