Home / 13,998.42-19,342.40-11,189.00

Finding the Fourth Proportional to 13,998.42, 19,342.40 and 11,189.00

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Solution

The fourth proportional to 13,998.42, 19,342.40 and 11,189.00 is: 15,460.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.42 : 19,342.40 = 11,189.00 : x
  2. Step 2: Convert to fraction form
    13,998.42/19,342.40 = 11,189.00/x
  3. Step 3: Cross multiply
    13,998.42x = 19,342.40 × 11,189.00
  4. Step 4: Simplify right side
    13,998.42x = 216,422,106.01
  5. Step 5: Solve for x
    x = 216,422,106.01/13,998.42
  6. Step 6: Final answer
    x = 15,460.47

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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.