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Finding the Fourth Proportional to 13,800.40, 19,023.40 and 10,810.92

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Solution

The fourth proportional to 13,800.40, 19,023.40 and 10,810.92 is: 14,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.40 : 19,023.40 = 10,810.92 : x
  2. Step 2: Convert to fraction form
    13,800.40/19,023.40 = 10,810.92/x
  3. Step 3: Cross multiply
    13,800.40x = 19,023.40 × 10,810.92
  4. Step 4: Simplify right side
    13,800.40x = 205,660,455.53
  5. Step 5: Solve for x
    x = 205,660,455.53/13,800.40
  6. Step 6: Final answer
    x = 14,902.50

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Double scale
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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.