Home / 8,628.24-11,916.36-5,486.34

Finding the Fourth Proportional to 8,628.24, 11,916.36 and 5,486.34

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Solution

The fourth proportional to 8,628.24, 11,916.36 and 5,486.34 is: 7,577.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.24 : 11,916.36 = 5,486.34 : x
  2. Step 2: Convert to fraction form
    8,628.24/11,916.36 = 5,486.34/x
  3. Step 3: Cross multiply
    8,628.24x = 11,916.36 × 5,486.34
  4. Step 4: Simplify right side
    8,628.24x = 65,377,202.52
  5. Step 5: Solve for x
    x = 65,377,202.52/8,628.24
  6. Step 6: Final answer
    x = 7,577.12

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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.