Home / 8,647.20-11,908.02-7,512.35

Finding the Fourth Proportional to 8,647.20, 11,908.02 and 7,512.35

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Solution

The fourth proportional to 8,647.20, 11,908.02 and 7,512.35 is: 10,345.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.20 : 11,908.02 = 7,512.35 : x
  2. Step 2: Convert to fraction form
    8,647.20/11,908.02 = 7,512.35/x
  3. Step 3: Cross multiply
    8,647.20x = 11,908.02 × 7,512.35
  4. Step 4: Simplify right side
    8,647.20x = 89,457,214.05
  5. Step 5: Solve for x
    x = 89,457,214.05/8,647.20
  6. Step 6: Final answer
    x = 10,345.22

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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.