Home / 15,162.44-20,924.20-8,790.26

Finding the Fourth Proportional to 15,162.44, 20,924.20 and 8,790.26

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Solution

The fourth proportional to 15,162.44, 20,924.20 and 8,790.26 is: 12,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,162.44 : 20,924.20 = 8,790.26 : x
  2. Step 2: Convert to fraction form
    15,162.44/20,924.20 = 8,790.26/x
  3. Step 3: Cross multiply
    15,162.44x = 20,924.20 × 8,790.26
  4. Step 4: Simplify right side
    15,162.44x = 183,929,158.29
  5. Step 5: Solve for x
    x = 183,929,158.29/15,162.44
  6. Step 6: Final answer
    x = 12,130.58

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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.