Home / 13,992.15-19,309.12-7,704.52

Finding the Fourth Proportional to 13,992.15, 19,309.12 and 7,704.52

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Solution

The fourth proportional to 13,992.15, 19,309.12 and 7,704.52 is: 10,632.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.15 : 19,309.12 = 7,704.52 : x
  2. Step 2: Convert to fraction form
    13,992.15/19,309.12 = 7,704.52/x
  3. Step 3: Cross multiply
    13,992.15x = 19,309.12 × 7,704.52
  4. Step 4: Simplify right side
    13,992.15x = 148,767,501.22
  5. Step 5: Solve for x
    x = 148,767,501.22/13,992.15
  6. Step 6: Final answer
    x = 10,632.21

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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.