Home / 13,764.82-18,995.45-7,477.19

Finding the Fourth Proportional to 13,764.82, 18,995.45 and 7,477.19

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Solution

The fourth proportional to 13,764.82, 18,995.45 and 7,477.19 is: 10,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.82 : 18,995.45 = 7,477.19 : x
  2. Step 2: Convert to fraction form
    13,764.82/18,995.45 = 7,477.19/x
  3. Step 3: Cross multiply
    13,764.82x = 18,995.45 × 7,477.19
  4. Step 4: Simplify right side
    13,764.82x = 142,032,588.79
  5. Step 5: Solve for x
    x = 142,032,588.79/13,764.82
  6. Step 6: Final answer
    x = 10,318.52

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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.