Home / 13,365.75-18,423.49-10,528.64

Finding the Fourth Proportional to 13,365.75, 18,423.49 and 10,528.64

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Solution

The fourth proportional to 13,365.75, 18,423.49 and 10,528.64 is: 14,512.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.75 : 18,423.49 = 10,528.64 : x
  2. Step 2: Convert to fraction form
    13,365.75/18,423.49 = 10,528.64/x
  3. Step 3: Cross multiply
    13,365.75x = 18,423.49 × 10,528.64
  4. Step 4: Simplify right side
    13,365.75x = 193,974,175.31
  5. Step 5: Solve for x
    x = 193,974,175.31/13,365.75
  6. Step 6: Final answer
    x = 14,512.78

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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.