Home / 13,742.64-18,953.12-10,563.64

Finding the Fourth Proportional to 13,742.64, 18,953.12 and 10,563.64

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Solution

The fourth proportional to 13,742.64, 18,953.12 and 10,563.64 is: 14,568.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.64 : 18,953.12 = 10,563.64 : x
  2. Step 2: Convert to fraction form
    13,742.64/18,953.12 = 10,563.64/x
  3. Step 3: Cross multiply
    13,742.64x = 18,953.12 × 10,563.64
  4. Step 4: Simplify right side
    13,742.64x = 200,213,915.58
  5. Step 5: Solve for x
    x = 200,213,915.58/13,742.64
  6. Step 6: Final answer
    x = 14,568.81

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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.