Home / 9,060.05-13,579.85-4,890.78

Finding the Fourth Proportional to 9,060.05, 13,579.85 and 4,890.78

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Solution

The fourth proportional to 9,060.05, 13,579.85 and 4,890.78 is: 7,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,060.05 : 13,579.85 = 4,890.78 : x
  2. Step 2: Convert to fraction form
    9,060.05/13,579.85 = 4,890.78/x
  3. Step 3: Cross multiply
    9,060.05x = 13,579.85 × 4,890.78
  4. Step 4: Simplify right side
    9,060.05x = 66,416,071.01
  5. Step 5: Solve for x
    x = 66,416,071.01/9,060.05
  6. Step 6: Final answer
    x = 7,330.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.