Home / 7,415.50-10,234.32-4,865.40

Finding the Fourth Proportional to 7,415.50, 10,234.32 and 4,865.40

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Solution

The fourth proportional to 7,415.50, 10,234.32 and 4,865.40 is: 6,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.50 : 10,234.32 = 4,865.40 : x
  2. Step 2: Convert to fraction form
    7,415.50/10,234.32 = 4,865.40/x
  3. Step 3: Cross multiply
    7,415.50x = 10,234.32 × 4,865.40
  4. Step 4: Simplify right side
    7,415.50x = 49,794,060.53
  5. Step 5: Solve for x
    x = 49,794,060.53/7,415.50
  6. Step 6: Final answer
    x = 6,714.86

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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.