Home / 13,012.54-19,515.90-5,985.81

Finding the Fourth Proportional to 13,012.54, 19,515.90 and 5,985.81

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Solution

The fourth proportional to 13,012.54, 19,515.90 and 5,985.81 is: 8,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.54 : 19,515.90 = 5,985.81 : x
  2. Step 2: Convert to fraction form
    13,012.54/19,515.90 = 5,985.81/x
  3. Step 3: Cross multiply
    13,012.54x = 19,515.90 × 5,985.81
  4. Step 4: Simplify right side
    13,012.54x = 116,818,390.66
  5. Step 5: Solve for x
    x = 116,818,390.66/13,012.54
  6. Step 6: Final answer
    x = 8,977.37

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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.