Home / 11,255.31-15,532.43-6,219.45

Finding the Fourth Proportional to 11,255.31, 15,532.43 and 6,219.45

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Solution

The fourth proportional to 11,255.31, 15,532.43 and 6,219.45 is: 8,582.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.31 : 15,532.43 = 6,219.45 : x
  2. Step 2: Convert to fraction form
    11,255.31/15,532.43 = 6,219.45/x
  3. Step 3: Cross multiply
    11,255.31x = 15,532.43 × 6,219.45
  4. Step 4: Simplify right side
    11,255.31x = 96,603,140.67
  5. Step 5: Solve for x
    x = 96,603,140.67/11,255.31
  6. Step 6: Final answer
    x = 8,582.89

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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.