Home / 13,841.00-19,111.46-11,143.65

Finding the Fourth Proportional to 13,841.00, 19,111.46 and 11,143.65

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Solution

The fourth proportional to 13,841.00, 19,111.46 and 11,143.65 is: 15,387.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.00 : 19,111.46 = 11,143.65 : x
  2. Step 2: Convert to fraction form
    13,841.00/19,111.46 = 11,143.65/x
  3. Step 3: Cross multiply
    13,841.00x = 19,111.46 × 11,143.65
  4. Step 4: Simplify right side
    13,841.00x = 212,971,373.45
  5. Step 5: Solve for x
    x = 212,971,373.45/13,841.00
  6. Step 6: Final answer
    x = 15,387.00

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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.