Home / 8,018.50-11,068.62-7,177.72

Finding the Fourth Proportional to 8,018.50, 11,068.62 and 7,177.72

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Solution

The fourth proportional to 8,018.50, 11,068.62 and 7,177.72 is: 9,908.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,018.50 : 11,068.62 = 7,177.72 : x
  2. Step 2: Convert to fraction form
    8,018.50/11,068.62 = 7,177.72/x
  3. Step 3: Cross multiply
    8,018.50x = 11,068.62 × 7,177.72
  4. Step 4: Simplify right side
    8,018.50x = 79,447,455.15
  5. Step 5: Solve for x
    x = 79,447,455.15/8,018.50
  6. Step 6: Final answer
    x = 9,908.02

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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.