Home / 13,960.51-19,263.87-7,991.83

Finding the Fourth Proportional to 13,960.51, 19,263.87 and 7,991.83

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Solution

The fourth proportional to 13,960.51, 19,263.87 and 7,991.83 is: 11,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,960.51 : 19,263.87 = 7,991.83 : x
  2. Step 2: Convert to fraction form
    13,960.51/19,263.87 = 7,991.83/x
  3. Step 3: Cross multiply
    13,960.51x = 19,263.87 × 7,991.83
  4. Step 4: Simplify right side
    13,960.51x = 153,953,574.18
  5. Step 5: Solve for x
    x = 153,953,574.18/13,960.51
  6. Step 6: Final answer
    x = 11,027.79

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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.