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Finding the Fourth Proportional to 14,122.13, 19,488.56 and 7,834.51

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Solution

The fourth proportional to 14,122.13, 19,488.56 and 7,834.51 is: 10,811.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.13 : 19,488.56 = 7,834.51 : x
  2. Step 2: Convert to fraction form
    14,122.13/19,488.56 = 7,834.51/x
  3. Step 3: Cross multiply
    14,122.13x = 19,488.56 × 7,834.51
  4. Step 4: Simplify right side
    14,122.13x = 152,683,240.35
  5. Step 5: Solve for x
    x = 152,683,240.35/14,122.13
  6. Step 6: Final answer
    x = 10,811.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.