Home / 13,787.68-19,026.84-7,499.92

Finding the Fourth Proportional to 13,787.68, 19,026.84 and 7,499.92

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Solution

The fourth proportional to 13,787.68, 19,026.84 and 7,499.92 is: 10,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.68 : 19,026.84 = 7,499.92 : x
  2. Step 2: Convert to fraction form
    13,787.68/19,026.84 = 7,499.92/x
  3. Step 3: Cross multiply
    13,787.68x = 19,026.84 × 7,499.92
  4. Step 4: Simplify right side
    13,787.68x = 142,699,777.85
  5. Step 5: Solve for x
    x = 142,699,777.85/13,787.68
  6. Step 6: Final answer
    x = 10,349.80

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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.