Home / 13,427.54-20,141.23-5,219.54

Finding the Fourth Proportional to 13,427.54, 20,141.23 and 5,219.54

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Solution

The fourth proportional to 13,427.54, 20,141.23 and 5,219.54 is: 7,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.54 : 20,141.23 = 5,219.54 : x
  2. Step 2: Convert to fraction form
    13,427.54/20,141.23 = 5,219.54/x
  3. Step 3: Cross multiply
    13,427.54x = 20,141.23 × 5,219.54
  4. Step 4: Simplify right side
    13,427.54x = 105,127,955.63
  5. Step 5: Solve for x
    x = 105,127,955.63/13,427.54
  6. Step 6: Final answer
    x = 7,829.28

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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.