Home / 13,453.10-20,172.45-5,653.10

Finding the Fourth Proportional to 13,453.10, 20,172.45 and 5,653.10

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Solution

The fourth proportional to 13,453.10, 20,172.45 and 5,653.10 is: 8,476.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.10 : 20,172.45 = 5,653.10 : x
  2. Step 2: Convert to fraction form
    13,453.10/20,172.45 = 5,653.10/x
  3. Step 3: Cross multiply
    13,453.10x = 20,172.45 × 5,653.10
  4. Step 4: Simplify right side
    13,453.10x = 114,036,877.10
  5. Step 5: Solve for x
    x = 114,036,877.10/13,453.10
  6. Step 6: Final answer
    x = 8,476.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.