Home / 13,658.34-18,845.82-7,690.26

Finding the Fourth Proportional to 13,658.34, 18,845.82 and 7,690.26

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Solution

The fourth proportional to 13,658.34, 18,845.82 and 7,690.26 is: 10,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,658.34 : 18,845.82 = 7,690.26 : x
  2. Step 2: Convert to fraction form
    13,658.34/18,845.82 = 7,690.26/x
  3. Step 3: Cross multiply
    13,658.34x = 18,845.82 × 7,690.26
  4. Step 4: Simplify right side
    13,658.34x = 144,929,255.71
  5. Step 5: Solve for x
    x = 144,929,255.71/13,658.34
  6. Step 6: Final answer
    x = 10,611.04

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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.