Home / 14,945.22-20,619.47-9,643.56

Finding the Fourth Proportional to 14,945.22, 20,619.47 and 9,643.56

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Solution

The fourth proportional to 14,945.22, 20,619.47 and 9,643.56 is: 13,304.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,945.22 : 20,619.47 = 9,643.56 : x
  2. Step 2: Convert to fraction form
    14,945.22/20,619.47 = 9,643.56/x
  3. Step 3: Cross multiply
    14,945.22x = 20,619.47 × 9,643.56
  4. Step 4: Simplify right side
    14,945.22x = 198,845,047.90
  5. Step 5: Solve for x
    x = 198,845,047.90/14,945.22
  6. Step 6: Final answer
    x = 13,304.93

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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.