Home / 13,125.08-19,688.60-3,765.02

Finding the Fourth Proportional to 13,125.08, 19,688.60 and 3,765.02

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Solution

The fourth proportional to 13,125.08, 19,688.60 and 3,765.02 is: 5,647.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.08 : 19,688.60 = 3,765.02 : x
  2. Step 2: Convert to fraction form
    13,125.08/19,688.60 = 3,765.02/x
  3. Step 3: Cross multiply
    13,125.08x = 19,688.60 × 3,765.02
  4. Step 4: Simplify right side
    13,125.08x = 74,127,972.77
  5. Step 5: Solve for x
    x = 74,127,972.77/13,125.08
  6. Step 6: Final answer
    x = 5,647.81

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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.