Home / 11,099.89-15,315.78-6,563.28

Finding the Fourth Proportional to 11,099.89, 15,315.78 and 6,563.28

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Solution

The fourth proportional to 11,099.89, 15,315.78 and 6,563.28 is: 9,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,099.89 : 15,315.78 = 6,563.28 : x
  2. Step 2: Convert to fraction form
    11,099.89/15,315.78 = 6,563.28/x
  3. Step 3: Cross multiply
    11,099.89x = 15,315.78 × 6,563.28
  4. Step 4: Simplify right side
    11,099.89x = 100,521,752.56
  5. Step 5: Solve for x
    x = 100,521,752.56/11,099.89
  6. Step 6: Final answer
    x = 9,056.10

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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.