Home / 13,730.88-18,950.10-7,683.32

Finding the Fourth Proportional to 13,730.88, 18,950.10 and 7,683.32

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Solution

The fourth proportional to 13,730.88, 18,950.10 and 7,683.32 is: 10,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.88 : 18,950.10 = 7,683.32 : x
  2. Step 2: Convert to fraction form
    13,730.88/18,950.10 = 7,683.32/x
  3. Step 3: Cross multiply
    13,730.88x = 18,950.10 × 7,683.32
  4. Step 4: Simplify right side
    13,730.88x = 145,599,682.33
  5. Step 5: Solve for x
    x = 145,599,682.33/13,730.88
  6. Step 6: Final answer
    x = 10,603.81

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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.