Home / 13,710.40-18,923.94-8,045.98

Finding the Fourth Proportional to 13,710.40, 18,923.94 and 8,045.98

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Solution

The fourth proportional to 13,710.40, 18,923.94 and 8,045.98 is: 11,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.40 : 18,923.94 = 8,045.98 : x
  2. Step 2: Convert to fraction form
    13,710.40/18,923.94 = 8,045.98/x
  3. Step 3: Cross multiply
    13,710.40x = 18,923.94 × 8,045.98
  4. Step 4: Simplify right side
    13,710.40x = 152,261,642.76
  5. Step 5: Solve for x
    x = 152,261,642.76/13,710.40
  6. Step 6: Final answer
    x = 11,105.56

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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.