Home / 7,998.78-11,038.08-4,461.91

Finding the Fourth Proportional to 7,998.78, 11,038.08 and 4,461.91

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Solution

The fourth proportional to 7,998.78, 11,038.08 and 4,461.91 is: 6,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.78 : 11,038.08 = 4,461.91 : x
  2. Step 2: Convert to fraction form
    7,998.78/11,038.08 = 4,461.91/x
  3. Step 3: Cross multiply
    7,998.78x = 11,038.08 × 4,461.91
  4. Step 4: Simplify right side
    7,998.78x = 49,250,919.53
  5. Step 5: Solve for x
    x = 49,250,919.53/7,998.78
  6. Step 6: Final answer
    x = 6,157.30

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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.