Home / 13,325.54-19,931.07-7,764.98

Finding the Fourth Proportional to 13,325.54, 19,931.07 and 7,764.98

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Solution

The fourth proportional to 13,325.54, 19,931.07 and 7,764.98 is: 11,614.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.54 : 19,931.07 = 7,764.98 : x
  2. Step 2: Convert to fraction form
    13,325.54/19,931.07 = 7,764.98/x
  3. Step 3: Cross multiply
    13,325.54x = 19,931.07 × 7,764.98
  4. Step 4: Simplify right side
    13,325.54x = 154,764,359.93
  5. Step 5: Solve for x
    x = 154,764,359.93/13,325.54
  6. Step 6: Final answer
    x = 11,614.12

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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.