Home / 13,135.98-19,699.74-4,368.54

Finding the Fourth Proportional to 13,135.98, 19,699.74 and 4,368.54

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Solution

The fourth proportional to 13,135.98, 19,699.74 and 4,368.54 is: 6,551.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.98 : 19,699.74 = 4,368.54 : x
  2. Step 2: Convert to fraction form
    13,135.98/19,699.74 = 4,368.54/x
  3. Step 3: Cross multiply
    13,135.98x = 19,699.74 × 4,368.54
  4. Step 4: Simplify right side
    13,135.98x = 86,059,102.18
  5. Step 5: Solve for x
    x = 86,059,102.18/13,135.98
  6. Step 6: Final answer
    x = 6,551.40

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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.