Home / 13,589.04-18,749.31-7,845.09

Finding the Fourth Proportional to 13,589.04, 18,749.31 and 7,845.09

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Solution

The fourth proportional to 13,589.04, 18,749.31 and 7,845.09 is: 10,824.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.04 : 18,749.31 = 7,845.09 : x
  2. Step 2: Convert to fraction form
    13,589.04/18,749.31 = 7,845.09/x
  3. Step 3: Cross multiply
    13,589.04x = 18,749.31 × 7,845.09
  4. Step 4: Simplify right side
    13,589.04x = 147,090,024.39
  5. Step 5: Solve for x
    x = 147,090,024.39/13,589.04
  6. Step 6: Final answer
    x = 10,824.17

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1.5x scale

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.