Home / 15,162.03-20,924.73-8,790.57

Finding the Fourth Proportional to 15,162.03, 20,924.73 and 8,790.57

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Solution

The fourth proportional to 15,162.03, 20,924.73 and 8,790.57 is: 12,131.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,162.03 : 20,924.73 = 8,790.57 : x
  2. Step 2: Convert to fraction form
    15,162.03/20,924.73 = 8,790.57/x
  3. Step 3: Cross multiply
    15,162.03x = 20,924.73 × 8,790.57
  4. Step 4: Simplify right side
    15,162.03x = 183,940,303.80
  5. Step 5: Solve for x
    x = 183,940,303.80/15,162.03
  6. Step 6: Final answer
    x = 12,131.64

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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.