Home / 13,787.73-19,030.98-8,125.77

Finding the Fourth Proportional to 13,787.73, 19,030.98 and 8,125.77

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Solution

The fourth proportional to 13,787.73, 19,030.98 and 8,125.77 is: 11,215.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.73 : 19,030.98 = 8,125.77 : x
  2. Step 2: Convert to fraction form
    13,787.73/19,030.98 = 8,125.77/x
  3. Step 3: Cross multiply
    13,787.73x = 19,030.98 × 8,125.77
  4. Step 4: Simplify right side
    13,787.73x = 154,641,366.35
  5. Step 5: Solve for x
    x = 154,641,366.35/13,787.73
  6. Step 6: Final answer
    x = 11,215.87

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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.