Home / 13,235.43-18,263.55-7,930.11

Finding the Fourth Proportional to 13,235.43, 18,263.55 and 7,930.11

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Solution

The fourth proportional to 13,235.43, 18,263.55 and 7,930.11 is: 10,942.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.43 : 18,263.55 = 7,930.11 : x
  2. Step 2: Convert to fraction form
    13,235.43/18,263.55 = 7,930.11/x
  3. Step 3: Cross multiply
    13,235.43x = 18,263.55 × 7,930.11
  4. Step 4: Simplify right side
    13,235.43x = 144,831,960.49
  5. Step 5: Solve for x
    x = 144,831,960.49/13,235.43
  6. Step 6: Final answer
    x = 10,942.75

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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.