Home / 10,787.80-14,852.43-8,394.87

Finding the Fourth Proportional to 10,787.80, 14,852.43 and 8,394.87

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Solution

The fourth proportional to 10,787.80, 14,852.43 and 8,394.87 is: 11,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.80 : 14,852.43 = 8,394.87 : x
  2. Step 2: Convert to fraction form
    10,787.80/14,852.43 = 8,394.87/x
  3. Step 3: Cross multiply
    10,787.80x = 14,852.43 × 8,394.87
  4. Step 4: Simplify right side
    10,787.80x = 124,684,219.03
  5. Step 5: Solve for x
    x = 124,684,219.03/10,787.80
  6. Step 6: Final answer
    x = 11,557.89

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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.