Home / 12,411.56-18,700.16-11,226.96

Finding the Fourth Proportional to 12,411.56, 18,700.16 and 11,226.96

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Solution

The fourth proportional to 12,411.56, 18,700.16 and 11,226.96 is: 16,915.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.56 : 18,700.16 = 11,226.96 : x
  2. Step 2: Convert to fraction form
    12,411.56/18,700.16 = 11,226.96/x
  3. Step 3: Cross multiply
    12,411.56x = 18,700.16 × 11,226.96
  4. Step 4: Simplify right side
    12,411.56x = 209,945,892.18
  5. Step 5: Solve for x
    x = 209,945,892.18/12,411.56
  6. Step 6: Final answer
    x = 16,915.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.