Home / 11,215.68-15,476.72-6,500.32

Finding the Fourth Proportional to 11,215.68, 15,476.72 and 6,500.32

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Solution

The fourth proportional to 11,215.68, 15,476.72 and 6,500.32 is: 8,969.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.68 : 15,476.72 = 6,500.32 : x
  2. Step 2: Convert to fraction form
    11,215.68/15,476.72 = 6,500.32/x
  3. Step 3: Cross multiply
    11,215.68x = 15,476.72 × 6,500.32
  4. Step 4: Simplify right side
    11,215.68x = 100,603,632.55
  5. Step 5: Solve for x
    x = 100,603,632.55/11,215.68
  6. Step 6: Final answer
    x = 8,969.91

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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.