Home / 8,457.20-11,675.63-5,100.86

Finding the Fourth Proportional to 8,457.20, 11,675.63 and 5,100.86

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Solution

The fourth proportional to 8,457.20, 11,675.63 and 5,100.86 is: 7,042.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.20 : 11,675.63 = 5,100.86 : x
  2. Step 2: Convert to fraction form
    8,457.20/11,675.63 = 5,100.86/x
  3. Step 3: Cross multiply
    8,457.20x = 11,675.63 × 5,100.86
  4. Step 4: Simplify right side
    8,457.20x = 59,555,728.54
  5. Step 5: Solve for x
    x = 59,555,728.54/8,457.20
  6. Step 6: Final answer
    x = 7,042.01

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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.