Home / 11,476.78-15,838.28-6,999.51

Finding the Fourth Proportional to 11,476.78, 15,838.28 and 6,999.51

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Solution

The fourth proportional to 11,476.78, 15,838.28 and 6,999.51 is: 9,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,476.78 : 15,838.28 = 6,999.51 : x
  2. Step 2: Convert to fraction form
    11,476.78/15,838.28 = 6,999.51/x
  3. Step 3: Cross multiply
    11,476.78x = 15,838.28 × 6,999.51
  4. Step 4: Simplify right side
    11,476.78x = 110,860,085.05
  5. Step 5: Solve for x
    x = 110,860,085.05/11,476.78
  6. Step 6: Final answer
    x = 9,659.51

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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.