Home / 13,859.36-19,125.91-7,485.95

Finding the Fourth Proportional to 13,859.36, 19,125.91 and 7,485.95

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Solution

The fourth proportional to 13,859.36, 19,125.91 and 7,485.95 is: 10,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.36 : 19,125.91 = 7,485.95 : x
  2. Step 2: Convert to fraction form
    13,859.36/19,125.91 = 7,485.95/x
  3. Step 3: Cross multiply
    13,859.36x = 19,125.91 × 7,485.95
  4. Step 4: Simplify right side
    13,859.36x = 143,175,605.96
  5. Step 5: Solve for x
    x = 143,175,605.96/13,859.36
  6. Step 6: Final answer
    x = 10,330.61

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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.