Home / 9,113.53-12,576.68-4,921.78

Finding the Fourth Proportional to 9,113.53, 12,576.68 and 4,921.78

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Solution

The fourth proportional to 9,113.53, 12,576.68 and 4,921.78 is: 6,792.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113.53 : 12,576.68 = 4,921.78 : x
  2. Step 2: Convert to fraction form
    9,113.53/12,576.68 = 4,921.78/x
  3. Step 3: Cross multiply
    9,113.53x = 12,576.68 × 4,921.78
  4. Step 4: Simplify right side
    9,113.53x = 61,899,627.48
  5. Step 5: Solve for x
    x = 61,899,627.48/9,113.53
  6. Step 6: Final answer
    x = 6,792.06

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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.