Home / 7,887.16-11,830.70-2,959.12

Finding the Fourth Proportional to 7,887.16, 11,830.70 and 2,959.12

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Solution

The fourth proportional to 7,887.16, 11,830.70 and 2,959.12 is: 4,438.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.16 : 11,830.70 = 2,959.12 : x
  2. Step 2: Convert to fraction form
    7,887.16/11,830.70 = 2,959.12/x
  3. Step 3: Cross multiply
    7,887.16x = 11,830.70 × 2,959.12
  4. Step 4: Simplify right side
    7,887.16x = 35,008,460.98
  5. Step 5: Solve for x
    x = 35,008,460.98/7,887.16
  6. Step 6: Final answer
    x = 4,438.66

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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.