Home / 12,261.02-16,921.35-7,226.80

Finding the Fourth Proportional to 12,261.02, 16,921.35 and 7,226.80

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Solution

The fourth proportional to 12,261.02, 16,921.35 and 7,226.80 is: 9,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.02 : 16,921.35 = 7,226.80 : x
  2. Step 2: Convert to fraction form
    12,261.02/16,921.35 = 7,226.80/x
  3. Step 3: Cross multiply
    12,261.02x = 16,921.35 × 7,226.80
  4. Step 4: Simplify right side
    12,261.02x = 122,287,212.18
  5. Step 5: Solve for x
    x = 122,287,212.18/12,261.02
  6. Step 6: Final answer
    x = 9,973.66

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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.