Home / 13,642.56-18,827.46-7,674.60

Finding the Fourth Proportional to 13,642.56, 18,827.46 and 7,674.60

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Solution

The fourth proportional to 13,642.56, 18,827.46 and 7,674.60 is: 10,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642.56 : 18,827.46 = 7,674.60 : x
  2. Step 2: Convert to fraction form
    13,642.56/18,827.46 = 7,674.60/x
  3. Step 3: Cross multiply
    13,642.56x = 18,827.46 × 7,674.60
  4. Step 4: Simplify right side
    13,642.56x = 144,493,224.52
  5. Step 5: Solve for x
    x = 144,493,224.52/13,642.56
  6. Step 6: Final answer
    x = 10,591.36

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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.