Home / 13,973.18-19,266.86-11,138.36

Finding the Fourth Proportional to 13,973.18, 19,266.86 and 11,138.36

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Solution

The fourth proportional to 13,973.18, 19,266.86 and 11,138.36 is: 15,358.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.18 : 19,266.86 = 11,138.36 : x
  2. Step 2: Convert to fraction form
    13,973.18/19,266.86 = 11,138.36/x
  3. Step 3: Cross multiply
    13,973.18x = 19,266.86 × 11,138.36
  4. Step 4: Simplify right side
    13,973.18x = 214,601,262.64
  5. Step 5: Solve for x
    x = 214,601,262.64/13,973.18
  6. Step 6: Final answer
    x = 15,358.08

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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.