Home / 11,478.52-15,837.78-6,763.24

Finding the Fourth Proportional to 11,478.52, 15,837.78 and 6,763.24

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Solution

The fourth proportional to 11,478.52, 15,837.78 and 6,763.24 is: 9,331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.52 : 15,837.78 = 6,763.24 : x
  2. Step 2: Convert to fraction form
    11,478.52/15,837.78 = 6,763.24/x
  3. Step 3: Cross multiply
    11,478.52x = 15,837.78 × 6,763.24
  4. Step 4: Simplify right side
    11,478.52x = 107,114,707.21
  5. Step 5: Solve for x
    x = 107,114,707.21/11,478.52
  6. Step 6: Final answer
    x = 9,331.75

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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.