Home / 18,779.90-25,916.27-11,706.35

Finding the Fourth Proportional to 18,779.90, 25,916.27 and 11,706.35

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Solution

The fourth proportional to 18,779.90, 25,916.27 and 11,706.35 is: 16,154.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779.90 : 25,916.27 = 11,706.35 : x
  2. Step 2: Convert to fraction form
    18,779.90/25,916.27 = 11,706.35/x
  3. Step 3: Cross multiply
    18,779.90x = 25,916.27 × 11,706.35
  4. Step 4: Simplify right side
    18,779.90x = 303,384,739.20
  5. Step 5: Solve for x
    x = 303,384,739.20/18,779.90
  6. Step 6: Final answer
    x = 16,154.76

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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.