Home / 15,228.05-22,826.51-8,640.32

Finding the Fourth Proportional to 15,228.05, 22,826.51 and 8,640.32

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Solution

The fourth proportional to 15,228.05, 22,826.51 and 8,640.32 is: 12,951.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228.05 : 22,826.51 = 8,640.32 : x
  2. Step 2: Convert to fraction form
    15,228.05/22,826.51 = 8,640.32/x
  3. Step 3: Cross multiply
    15,228.05x = 22,826.51 × 8,640.32
  4. Step 4: Simplify right side
    15,228.05x = 197,228,193.55
  5. Step 5: Solve for x
    x = 197,228,193.55/15,228.05
  6. Step 6: Final answer
    x = 12,951.64

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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.