Home / 19,172.85-26,457.89-10,787.73

Finding the Fourth Proportional to 19,172.85, 26,457.89 and 10,787.73

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Solution

The fourth proportional to 19,172.85, 26,457.89 and 10,787.73 is: 14,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.85 : 26,457.89 = 10,787.73 : x
  2. Step 2: Convert to fraction form
    19,172.85/26,457.89 = 10,787.73/x
  3. Step 3: Cross multiply
    19,172.85x = 26,457.89 × 10,787.73
  4. Step 4: Simplify right side
    19,172.85x = 285,420,519.75
  5. Step 5: Solve for x
    x = 285,420,519.75/19,172.85
  6. Step 6: Final answer
    x = 14,886.70

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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.