Home / 11,438.88-15,782.80-6,722.24

Finding the Fourth Proportional to 11,438.88, 15,782.80 and 6,722.24

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Solution

The fourth proportional to 11,438.88, 15,782.80 and 6,722.24 is: 9,275.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.88 : 15,782.80 = 6,722.24 : x
  2. Step 2: Convert to fraction form
    11,438.88/15,782.80 = 6,722.24/x
  3. Step 3: Cross multiply
    11,438.88x = 15,782.80 × 6,722.24
  4. Step 4: Simplify right side
    11,438.88x = 106,095,769.47
  5. Step 5: Solve for x
    x = 106,095,769.47/11,438.88
  6. Step 6: Final answer
    x = 9,275.01

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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.