Home / 11,718.88-17,577.76-4,322.80

Finding the Fourth Proportional to 11,718.88, 17,577.76 and 4,322.80

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Solution

The fourth proportional to 11,718.88, 17,577.76 and 4,322.80 is: 6,483.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.88 : 17,577.76 = 4,322.80 : x
  2. Step 2: Convert to fraction form
    11,718.88/17,577.76 = 4,322.80/x
  3. Step 3: Cross multiply
    11,718.88x = 17,577.76 × 4,322.80
  4. Step 4: Simplify right side
    11,718.88x = 75,985,140.93
  5. Step 5: Solve for x
    x = 75,985,140.93/11,718.88
  6. Step 6: Final answer
    x = 6,483.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.