Home / 13,708.59-18,916.72-8,042.75

Finding the Fourth Proportional to 13,708.59, 18,916.72 and 8,042.75

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Solution

The fourth proportional to 13,708.59, 18,916.72 and 8,042.75 is: 11,098.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.59 : 18,916.72 = 8,042.75 : x
  2. Step 2: Convert to fraction form
    13,708.59/18,916.72 = 8,042.75/x
  3. Step 3: Cross multiply
    13,708.59x = 18,916.72 × 8,042.75
  4. Step 4: Simplify right side
    13,708.59x = 152,142,314.98
  5. Step 5: Solve for x
    x = 152,142,314.98/13,708.59
  6. Step 6: Final answer
    x = 11,098.32

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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.