Home / 11,248.89-15,530.09-7,717.29

Finding the Fourth Proportional to 11,248.89, 15,530.09 and 7,717.29

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Solution

The fourth proportional to 11,248.89, 15,530.09 and 7,717.29 is: 10,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.89 : 15,530.09 = 7,717.29 : x
  2. Step 2: Convert to fraction form
    11,248.89/15,530.09 = 7,717.29/x
  3. Step 3: Cross multiply
    11,248.89x = 15,530.09 × 7,717.29
  4. Step 4: Simplify right side
    11,248.89x = 119,850,208.26
  5. Step 5: Solve for x
    x = 119,850,208.26/11,248.89
  6. Step 6: Final answer
    x = 10,654.40

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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.