Home / 9,113.64-12,576.83-4,921.89

Finding the Fourth Proportional to 9,113.64, 12,576.83 and 4,921.89

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Solution

The fourth proportional to 9,113.64, 12,576.83 and 4,921.89 is: 6,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113.64 : 12,576.83 = 4,921.89 : x
  2. Step 2: Convert to fraction form
    9,113.64/12,576.83 = 4,921.89/x
  3. Step 3: Cross multiply
    9,113.64x = 12,576.83 × 4,921.89
  4. Step 4: Simplify right side
    9,113.64x = 61,901,749.20
  5. Step 5: Solve for x
    x = 61,901,749.20/9,113.64
  6. Step 6: Final answer
    x = 6,792.21

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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.