Home / 13,787.12-19,026.14-7,499.52

Finding the Fourth Proportional to 13,787.12, 19,026.14 and 7,499.52

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Solution

The fourth proportional to 13,787.12, 19,026.14 and 7,499.52 is: 10,349.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.12 : 19,026.14 = 7,499.52 : x
  2. Step 2: Convert to fraction form
    13,787.12/19,026.14 = 7,499.52/x
  3. Step 3: Cross multiply
    13,787.12x = 19,026.14 × 7,499.52
  4. Step 4: Simplify right side
    13,787.12x = 142,686,917.45
  5. Step 5: Solve for x
    x = 142,686,917.45/13,787.12
  6. Step 6: Final answer
    x = 10,349.29

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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.