Home / 15,644.58-21,589.55-8,570.98

Finding the Fourth Proportional to 15,644.58, 21,589.55 and 8,570.98

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Solution

The fourth proportional to 15,644.58, 21,589.55 and 8,570.98 is: 11,827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,644.58 : 21,589.55 = 8,570.98 : x
  2. Step 2: Convert to fraction form
    15,644.58/21,589.55 = 8,570.98/x
  3. Step 3: Cross multiply
    15,644.58x = 21,589.55 × 8,570.98
  4. Step 4: Simplify right side
    15,644.58x = 185,043,601.26
  5. Step 5: Solve for x
    x = 185,043,601.26/15,644.58
  6. Step 6: Final answer
    x = 11,827.97

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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.