Home / 8,516.46-11,749.98-5,158.20

Finding the Fourth Proportional to 8,516.46, 11,749.98 and 5,158.20

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Solution

The fourth proportional to 8,516.46, 11,749.98 and 5,158.20 is: 7,116.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.46 : 11,749.98 = 5,158.20 : x
  2. Step 2: Convert to fraction form
    8,516.46/11,749.98 = 5,158.20/x
  3. Step 3: Cross multiply
    8,516.46x = 11,749.98 × 5,158.20
  4. Step 4: Simplify right side
    8,516.46x = 60,608,746.84
  5. Step 5: Solve for x
    x = 60,608,746.84/8,516.46
  6. Step 6: Final answer
    x = 7,116.66

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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.