Home / 13,992.12-19,307.16-7,704.90

Finding the Fourth Proportional to 13,992.12, 19,307.16 and 7,704.90

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Solution

The fourth proportional to 13,992.12, 19,307.16 and 7,704.90 is: 10,631.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.12 : 19,307.16 = 7,704.90 : x
  2. Step 2: Convert to fraction form
    13,992.12/19,307.16 = 7,704.90/x
  3. Step 3: Cross multiply
    13,992.12x = 19,307.16 × 7,704.90
  4. Step 4: Simplify right side
    13,992.12x = 148,759,737.08
  5. Step 5: Solve for x
    x = 148,759,737.08/13,992.12
  6. Step 6: Final answer
    x = 10,631.68

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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.