Home / 15,660.61-21,611.46-8,587.03

Finding the Fourth Proportional to 15,660.61, 21,611.46 and 8,587.03

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Solution

The fourth proportional to 15,660.61, 21,611.46 and 8,587.03 is: 11,850.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660.61 : 21,611.46 = 8,587.03 : x
  2. Step 2: Convert to fraction form
    15,660.61/21,611.46 = 8,587.03/x
  3. Step 3: Cross multiply
    15,660.61x = 21,611.46 × 8,587.03
  4. Step 4: Simplify right side
    15,660.61x = 185,578,255.36
  5. Step 5: Solve for x
    x = 185,578,255.36/15,660.61
  6. Step 6: Final answer
    x = 11,850.00

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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.