Home / 8,516.90-11,753.55-4,688.65

Finding the Fourth Proportional to 8,516.90, 11,753.55 and 4,688.65

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Solution

The fourth proportional to 8,516.90, 11,753.55 and 4,688.65 is: 6,470.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.90 : 11,753.55 = 4,688.65 : x
  2. Step 2: Convert to fraction form
    8,516.90/11,753.55 = 4,688.65/x
  3. Step 3: Cross multiply
    8,516.90x = 11,753.55 × 4,688.65
  4. Step 4: Simplify right side
    8,516.90x = 55,108,223.44
  5. Step 5: Solve for x
    x = 55,108,223.44/8,516.90
  6. Step 6: Final answer
    x = 6,470.46

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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.