Home / 13,416.33-18,513.54-7,447.53

Finding the Fourth Proportional to 13,416.33, 18,513.54 and 7,447.53

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Solution

The fourth proportional to 13,416.33, 18,513.54 and 7,447.53 is: 10,277.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.33 : 18,513.54 = 7,447.53 : x
  2. Step 2: Convert to fraction form
    13,416.33/18,513.54 = 7,447.53/x
  3. Step 3: Cross multiply
    13,416.33x = 18,513.54 × 7,447.53
  4. Step 4: Simplify right side
    13,416.33x = 137,880,144.56
  5. Step 5: Solve for x
    x = 137,880,144.56/13,416.33
  6. Step 6: Final answer
    x = 10,277.04

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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.