Home / 13,968.82-19,281.05-8,307.55

Finding the Fourth Proportional to 13,968.82, 19,281.05 and 8,307.55

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Solution

The fourth proportional to 13,968.82, 19,281.05 and 8,307.55 is: 11,466.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.82 : 19,281.05 = 8,307.55 : x
  2. Step 2: Convert to fraction form
    13,968.82/19,281.05 = 8,307.55/x
  3. Step 3: Cross multiply
    13,968.82x = 19,281.05 × 8,307.55
  4. Step 4: Simplify right side
    13,968.82x = 160,178,286.93
  5. Step 5: Solve for x
    x = 160,178,286.93/13,968.82
  6. Step 6: Final answer
    x = 11,466.84

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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.