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Finding the Fourth Proportional to 13,807.01, 19,048.41 and 7,834.20

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Solution

The fourth proportional to 13,807.01, 19,048.41 and 7,834.20 is: 10,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.01 : 19,048.41 = 7,834.20 : x
  2. Step 2: Convert to fraction form
    13,807.01/19,048.41 = 7,834.20/x
  3. Step 3: Cross multiply
    13,807.01x = 19,048.41 × 7,834.20
  4. Step 4: Simplify right side
    13,807.01x = 149,229,053.62
  5. Step 5: Solve for x
    x = 149,229,053.62/13,807.01
  6. Step 6: Final answer
    x = 10,808.21

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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.