Home / 10,611.12-15,918.98-3,216.15

Finding the Fourth Proportional to 10,611.12, 15,918.98 and 3,216.15

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Solution

The fourth proportional to 10,611.12, 15,918.98 and 3,216.15 is: 4,824.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.12 : 15,918.98 = 3,216.15 : x
  2. Step 2: Convert to fraction form
    10,611.12/15,918.98 = 3,216.15/x
  3. Step 3: Cross multiply
    10,611.12x = 15,918.98 × 3,216.15
  4. Step 4: Simplify right side
    10,611.12x = 51,197,784.76
  5. Step 5: Solve for x
    x = 51,197,784.76/10,611.12
  6. Step 6: Final answer
    x = 4,824.92

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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.