Home / 15,772.02-21,764.39-8,698.42

Finding the Fourth Proportional to 15,772.02, 21,764.39 and 8,698.42

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Solution

The fourth proportional to 15,772.02, 21,764.39 and 8,698.42 is: 12,003.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772.02 : 21,764.39 = 8,698.42 : x
  2. Step 2: Convert to fraction form
    15,772.02/21,764.39 = 8,698.42/x
  3. Step 3: Cross multiply
    15,772.02x = 21,764.39 × 8,698.42
  4. Step 4: Simplify right side
    15,772.02x = 189,315,805.26
  5. Step 5: Solve for x
    x = 189,315,805.26/15,772.02
  6. Step 6: Final answer
    x = 12,003.27

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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.