Home / 13,116.10-19,676.55-5,325.70

Finding the Fourth Proportional to 13,116.10, 19,676.55 and 5,325.70

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Solution

The fourth proportional to 13,116.10, 19,676.55 and 5,325.70 is: 7,989.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116.10 : 19,676.55 = 5,325.70 : x
  2. Step 2: Convert to fraction form
    13,116.10/19,676.55 = 5,325.70/x
  3. Step 3: Cross multiply
    13,116.10x = 19,676.55 × 5,325.70
  4. Step 4: Simplify right side
    13,116.10x = 104,791,402.34
  5. Step 5: Solve for x
    x = 104,791,402.34/13,116.10
  6. Step 6: Final answer
    x = 7,989.52

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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.