Home / 12,985.13-19,466.21-6,317.96

Finding the Fourth Proportional to 12,985.13, 19,466.21 and 6,317.96

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Solution

The fourth proportional to 12,985.13, 19,466.21 and 6,317.96 is: 9,471.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985.13 : 19,466.21 = 6,317.96 : x
  2. Step 2: Convert to fraction form
    12,985.13/19,466.21 = 6,317.96/x
  3. Step 3: Cross multiply
    12,985.13x = 19,466.21 × 6,317.96
  4. Step 4: Simplify right side
    12,985.13x = 122,986,607.21
  5. Step 5: Solve for x
    x = 122,986,607.21/12,985.13
  6. Step 6: Final answer
    x = 9,471.35

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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.