Home / 11,480.49-15,843.31-6,445.08

Finding the Fourth Proportional to 11,480.49, 15,843.31 and 6,445.08

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Solution

The fourth proportional to 11,480.49, 15,843.31 and 6,445.08 is: 8,894.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.49 : 15,843.31 = 6,445.08 : x
  2. Step 2: Convert to fraction form
    11,480.49/15,843.31 = 6,445.08/x
  3. Step 3: Cross multiply
    11,480.49x = 15,843.31 × 6,445.08
  4. Step 4: Simplify right side
    11,480.49x = 102,111,384.30
  5. Step 5: Solve for x
    x = 102,111,384.30/11,480.49
  6. Step 6: Final answer
    x = 8,894.34

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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.