Home / 11,465.13-15,824.69-6,991.35

Finding the Fourth Proportional to 11,465.13, 15,824.69 and 6,991.35

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Solution

The fourth proportional to 11,465.13, 15,824.69 and 6,991.35 is: 9,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.13 : 15,824.69 = 6,991.35 : x
  2. Step 2: Convert to fraction form
    11,465.13/15,824.69 = 6,991.35/x
  3. Step 3: Cross multiply
    11,465.13x = 15,824.69 × 6,991.35
  4. Step 4: Simplify right side
    11,465.13x = 110,635,946.43
  5. Step 5: Solve for x
    x = 110,635,946.43/11,465.13
  6. Step 6: Final answer
    x = 9,649.78

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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.