Home / 12,646.40-18,971.52-6,071.36

Finding the Fourth Proportional to 12,646.40, 18,971.52 and 6,071.36

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Solution

The fourth proportional to 12,646.40, 18,971.52 and 6,071.36 is: 9,107.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.40 : 18,971.52 = 6,071.36 : x
  2. Step 2: Convert to fraction form
    12,646.40/18,971.52 = 6,071.36/x
  3. Step 3: Cross multiply
    12,646.40x = 18,971.52 × 6,071.36
  4. Step 4: Simplify right side
    12,646.40x = 115,182,927.67
  5. Step 5: Solve for x
    x = 115,182,927.67/12,646.40
  6. Step 6: Final answer
    x = 9,107.96

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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.