Home / 14,340.33-21,505.64-5,453.55

Finding the Fourth Proportional to 14,340.33, 21,505.64 and 5,453.55

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Solution

The fourth proportional to 14,340.33, 21,505.64 and 5,453.55 is: 8,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340.33 : 21,505.64 = 5,453.55 : x
  2. Step 2: Convert to fraction form
    14,340.33/21,505.64 = 5,453.55/x
  3. Step 3: Cross multiply
    14,340.33x = 21,505.64 × 5,453.55
  4. Step 4: Simplify right side
    14,340.33x = 117,282,055.75
  5. Step 5: Solve for x
    x = 117,282,055.75/14,340.33
  6. Step 6: Final answer
    x = 8,178.48

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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.