Home / 15,161.58-20,930.67-9,499.68

Finding the Fourth Proportional to 15,161.58, 20,930.67 and 9,499.68

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Solution

The fourth proportional to 15,161.58, 20,930.67 and 9,499.68 is: 13,114.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,161.58 : 20,930.67 = 9,499.68 : x
  2. Step 2: Convert to fraction form
    15,161.58/20,930.67 = 9,499.68/x
  3. Step 3: Cross multiply
    15,161.58x = 20,930.67 × 9,499.68
  4. Step 4: Simplify right side
    15,161.58x = 198,834,667.19
  5. Step 5: Solve for x
    x = 198,834,667.19/15,161.58
  6. Step 6: Final answer
    x = 13,114.38

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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.