Home / 13,222.45-18,246.87-7,254.01

Finding the Fourth Proportional to 13,222.45, 18,246.87 and 7,254.01

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Solution

The fourth proportional to 13,222.45, 18,246.87 and 7,254.01 is: 10,010.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.45 : 18,246.87 = 7,254.01 : x
  2. Step 2: Convert to fraction form
    13,222.45/18,246.87 = 7,254.01/x
  3. Step 3: Cross multiply
    13,222.45x = 18,246.87 × 7,254.01
  4. Step 4: Simplify right side
    13,222.45x = 132,362,977.45
  5. Step 5: Solve for x
    x = 132,362,977.45/13,222.45
  6. Step 6: Final answer
    x = 10,010.47

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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.