Home / 13,281.75-18,328.84-7,313.42

Finding the Fourth Proportional to 13,281.75, 18,328.84 and 7,313.42

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Solution

The fourth proportional to 13,281.75, 18,328.84 and 7,313.42 is: 10,092.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.75 : 18,328.84 = 7,313.42 : x
  2. Step 2: Convert to fraction form
    13,281.75/18,328.84 = 7,313.42/x
  3. Step 3: Cross multiply
    13,281.75x = 18,328.84 × 7,313.42
  4. Step 4: Simplify right side
    13,281.75x = 134,046,532.57
  5. Step 5: Solve for x
    x = 134,046,532.57/13,281.75
  6. Step 6: Final answer
    x = 10,092.54

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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.