Home / 8,513.31-11,749.99-5,328.09

Finding the Fourth Proportional to 8,513.31, 11,749.99 and 5,328.09

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Solution

The fourth proportional to 8,513.31, 11,749.99 and 5,328.09 is: 7,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.31 : 11,749.99 = 5,328.09 : x
  2. Step 2: Convert to fraction form
    8,513.31/11,749.99 = 5,328.09/x
  3. Step 3: Cross multiply
    8,513.31x = 11,749.99 × 5,328.09
  4. Step 4: Simplify right side
    8,513.31x = 62,604,961.52
  5. Step 5: Solve for x
    x = 62,604,961.52/8,513.31
  6. Step 6: Final answer
    x = 7,353.77

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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.