Home / 7,390.48-11,085.78-5,209

Finding the Fourth Proportional to 7,390.48, 11,085.78 and 5,209

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Solution

The fourth proportional to 7,390.48, 11,085.78 and 5,209 is: 7,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.48 : 11,085.78 = 5,209 : x
  2. Step 2: Convert to fraction form
    7,390.48/11,085.78 = 5,209/x
  3. Step 3: Cross multiply
    7,390.48x = 11,085.78 × 5,209
  4. Step 4: Simplify right side
    7,390.48x = 57,745,828.02
  5. Step 5: Solve for x
    x = 57,745,828.02/7,390.48
  6. Step 6: Final answer
    x = 7,813.54

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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.