Home / 7,916.78-11,887.47-7,566.17

Finding the Fourth Proportional to 7,916.78, 11,887.47 and 7,566.17

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Solution

The fourth proportional to 7,916.78, 11,887.47 and 7,566.17 is: 11,361.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.78 : 11,887.47 = 7,566.17 : x
  2. Step 2: Convert to fraction form
    7,916.78/11,887.47 = 7,566.17/x
  3. Step 3: Cross multiply
    7,916.78x = 11,887.47 × 7,566.17
  4. Step 4: Simplify right side
    7,916.78x = 89,942,648.61
  5. Step 5: Solve for x
    x = 89,942,648.61/7,916.78
  6. Step 6: Final answer
    x = 11,361.01

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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.