Home / 15,722.91-23,511.47-12,172.68

Finding the Fourth Proportional to 15,722.91, 23,511.47 and 12,172.68

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Solution

The fourth proportional to 15,722.91, 23,511.47 and 12,172.68 is: 18,202.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.91 : 23,511.47 = 12,172.68 : x
  2. Step 2: Convert to fraction form
    15,722.91/23,511.47 = 12,172.68/x
  3. Step 3: Cross multiply
    15,722.91x = 23,511.47 × 12,172.68
  4. Step 4: Simplify right side
    15,722.91x = 286,197,539.78
  5. Step 5: Solve for x
    x = 286,197,539.78/15,722.91
  6. Step 6: Final answer
    x = 18,202.58

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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.