Home / 15,272.43-23,012.70-12,559.87

Finding the Fourth Proportional to 15,272.43, 23,012.70 and 12,559.87

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Solution

The fourth proportional to 15,272.43, 23,012.70 and 12,559.87 is: 18,925.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272.43 : 23,012.70 = 12,559.87 : x
  2. Step 2: Convert to fraction form
    15,272.43/23,012.70 = 12,559.87/x
  3. Step 3: Cross multiply
    15,272.43x = 23,012.70 × 12,559.87
  4. Step 4: Simplify right side
    15,272.43x = 289,036,520.35
  5. Step 5: Solve for x
    x = 289,036,520.35/15,272.43
  6. Step 6: Final answer
    x = 18,925.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.