Home / 13,708.09-18,916.03-8,042.25

Finding the Fourth Proportional to 13,708.09, 18,916.03 and 8,042.25

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Solution

The fourth proportional to 13,708.09, 18,916.03 and 8,042.25 is: 11,097.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.09 : 18,916.03 = 8,042.25 : x
  2. Step 2: Convert to fraction form
    13,708.09/18,916.03 = 8,042.25/x
  3. Step 3: Cross multiply
    13,708.09x = 18,916.03 × 8,042.25
  4. Step 4: Simplify right side
    13,708.09x = 152,127,307.48
  5. Step 5: Solve for x
    x = 152,127,307.48/13,708.09
  6. Step 6: Final answer
    x = 11,097.63

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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.