Home / 13,087.10-18,062.49-7,784.90

Finding the Fourth Proportional to 13,087.10, 18,062.49 and 7,784.90

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Solution

The fourth proportional to 13,087.10, 18,062.49 and 7,784.90 is: 10,744.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.10 : 18,062.49 = 7,784.90 : x
  2. Step 2: Convert to fraction form
    13,087.10/18,062.49 = 7,784.90/x
  3. Step 3: Cross multiply
    13,087.10x = 18,062.49 × 7,784.90
  4. Step 4: Simplify right side
    13,087.10x = 140,614,678.40
  5. Step 5: Solve for x
    x = 140,614,678.40/13,087.10
  6. Step 6: Final answer
    x = 10,744.53

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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.