Home / 13,809.13-19,053.29-8,143.44

Finding the Fourth Proportional to 13,809.13, 19,053.29 and 8,143.44

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Solution

The fourth proportional to 13,809.13, 19,053.29 and 8,143.44 is: 11,236.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.13 : 19,053.29 = 8,143.44 : x
  2. Step 2: Convert to fraction form
    13,809.13/19,053.29 = 8,143.44/x
  3. Step 3: Cross multiply
    13,809.13x = 19,053.29 × 8,143.44
  4. Step 4: Simplify right side
    13,809.13x = 155,159,323.92
  5. Step 5: Solve for x
    x = 155,159,323.92/13,809.13
  6. Step 6: Final answer
    x = 11,236.00

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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.