Home / 9,511.78-13,126.22-5,320.02

Finding the Fourth Proportional to 9,511.78, 13,126.22 and 5,320.02

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Solution

The fourth proportional to 9,511.78, 13,126.22 and 5,320.02 is: 7,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,511.78 : 13,126.22 = 5,320.02 : x
  2. Step 2: Convert to fraction form
    9,511.78/13,126.22 = 5,320.02/x
  3. Step 3: Cross multiply
    9,511.78x = 13,126.22 × 5,320.02
  4. Step 4: Simplify right side
    9,511.78x = 69,831,752.92
  5. Step 5: Solve for x
    x = 69,831,752.92/9,511.78
  6. Step 6: Final answer
    x = 7,341.61

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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.