Home / 11,215.85-15,476.52-6,435.53

Finding the Fourth Proportional to 11,215.85, 15,476.52 and 6,435.53

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Solution

The fourth proportional to 11,215.85, 15,476.52 and 6,435.53 is: 8,880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.85 : 15,476.52 = 6,435.53 : x
  2. Step 2: Convert to fraction form
    11,215.85/15,476.52 = 6,435.53/x
  3. Step 3: Cross multiply
    11,215.85x = 15,476.52 × 6,435.53
  4. Step 4: Simplify right side
    11,215.85x = 99,599,608.76
  5. Step 5: Solve for x
    x = 99,599,608.76/11,215.85
  6. Step 6: Final answer
    x = 8,880.26

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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.