Home / 13,437.09-18,541.71-7,771.95

Finding the Fourth Proportional to 13,437.09, 18,541.71 and 7,771.95

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Solution

The fourth proportional to 13,437.09, 18,541.71 and 7,771.95 is: 10,724.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.09 : 18,541.71 = 7,771.95 : x
  2. Step 2: Convert to fraction form
    13,437.09/18,541.71 = 7,771.95/x
  3. Step 3: Cross multiply
    13,437.09x = 18,541.71 × 7,771.95
  4. Step 4: Simplify right side
    13,437.09x = 144,105,243.03
  5. Step 5: Solve for x
    x = 144,105,243.03/13,437.09
  6. Step 6: Final answer
    x = 10,724.44

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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.