Home / 13,437.22-18,542.02-7,771.54

Finding the Fourth Proportional to 13,437.22, 18,542.02 and 7,771.54

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Solution

The fourth proportional to 13,437.22, 18,542.02 and 7,771.54 is: 10,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.22 : 18,542.02 = 7,771.54 : x
  2. Step 2: Convert to fraction form
    13,437.22/18,542.02 = 7,771.54/x
  3. Step 3: Cross multiply
    13,437.22x = 18,542.02 × 7,771.54
  4. Step 4: Simplify right side
    13,437.22x = 144,099,918.54
  5. Step 5: Solve for x
    x = 144,099,918.54/13,437.22
  6. Step 6: Final answer
    x = 10,723.94

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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.