Home / 13,757.04-18,985.32-7,788.96

Finding the Fourth Proportional to 13,757.04, 18,985.32 and 7,788.96

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Solution

The fourth proportional to 13,757.04, 18,985.32 and 7,788.96 is: 10,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.04 : 18,985.32 = 7,788.96 : x
  2. Step 2: Convert to fraction form
    13,757.04/18,985.32 = 7,788.96/x
  3. Step 3: Cross multiply
    13,757.04x = 18,985.32 × 7,788.96
  4. Step 4: Simplify right side
    13,757.04x = 147,875,898.07
  5. Step 5: Solve for x
    x = 147,875,898.07/13,757.04
  6. Step 6: Final answer
    x = 10,749.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.