Home / 15,869.60-23,858.40-12,968.96

Finding the Fourth Proportional to 15,869.60, 23,858.40 and 12,968.96

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Solution

The fourth proportional to 15,869.60, 23,858.40 and 12,968.96 is: 19,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.60 : 23,858.40 = 12,968.96 : x
  2. Step 2: Convert to fraction form
    15,869.60/23,858.40 = 12,968.96/x
  3. Step 3: Cross multiply
    15,869.60x = 23,858.40 × 12,968.96
  4. Step 4: Simplify right side
    15,869.60x = 309,418,635.26
  5. Step 5: Solve for x
    x = 309,418,635.26/15,869.60
  6. Step 6: Final answer
    x = 19,497.57

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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.