Home / 15,113.58-22,568.56-12,345.72

Finding the Fourth Proportional to 15,113.58, 22,568.56 and 12,345.72

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Solution

The fourth proportional to 15,113.58, 22,568.56 and 12,345.72 is: 18,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.58 : 22,568.56 = 12,345.72 : x
  2. Step 2: Convert to fraction form
    15,113.58/22,568.56 = 12,345.72/x
  3. Step 3: Cross multiply
    15,113.58x = 22,568.56 × 12,345.72
  4. Step 4: Simplify right side
    15,113.58x = 278,625,122.56
  5. Step 5: Solve for x
    x = 278,625,122.56/15,113.58
  6. Step 6: Final answer
    x = 18,435.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.