Home / 12,226.18-16,871.62-6,921.30

Finding the Fourth Proportional to 12,226.18, 16,871.62 and 6,921.30

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Solution

The fourth proportional to 12,226.18, 16,871.62 and 6,921.30 is: 9,551.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.18 : 16,871.62 = 6,921.30 : x
  2. Step 2: Convert to fraction form
    12,226.18/16,871.62 = 6,921.30/x
  3. Step 3: Cross multiply
    12,226.18x = 16,871.62 × 6,921.30
  4. Step 4: Simplify right side
    12,226.18x = 116,773,543.51
  5. Step 5: Solve for x
    x = 116,773,543.51/12,226.18
  6. Step 6: Final answer
    x = 9,551.11

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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.