Home / 13,992.21-19,307.87-8,325.25

Finding the Fourth Proportional to 13,992.21, 19,307.87 and 8,325.25

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Solution

The fourth proportional to 13,992.21, 19,307.87 and 8,325.25 is: 11,488.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.21 : 19,307.87 = 8,325.25 : x
  2. Step 2: Convert to fraction form
    13,992.21/19,307.87 = 8,325.25/x
  3. Step 3: Cross multiply
    13,992.21x = 19,307.87 × 8,325.25
  4. Step 4: Simplify right side
    13,992.21x = 160,742,786.04
  5. Step 5: Solve for x
    x = 160,742,786.04/13,992.21
  6. Step 6: Final answer
    x = 11,488.02

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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.