Home / 13,038.75-19,551.65-5,245.47

Finding the Fourth Proportional to 13,038.75, 19,551.65 and 5,245.47

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Solution

The fourth proportional to 13,038.75, 19,551.65 and 5,245.47 is: 7,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.75 : 19,551.65 = 5,245.47 : x
  2. Step 2: Convert to fraction form
    13,038.75/19,551.65 = 5,245.47/x
  3. Step 3: Cross multiply
    13,038.75x = 19,551.65 × 5,245.47
  4. Step 4: Simplify right side
    13,038.75x = 102,557,567.30
  5. Step 5: Solve for x
    x = 102,557,567.30/13,038.75
  6. Step 6: Final answer
    x = 7,865.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.