Home / 13,920.08-20,897.93-11,958.26

Finding the Fourth Proportional to 13,920.08, 20,897.93 and 11,958.26

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Solution

The fourth proportional to 13,920.08, 20,897.93 and 11,958.26 is: 17,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.08 : 20,897.93 = 11,958.26 : x
  2. Step 2: Convert to fraction form
    13,920.08/20,897.93 = 11,958.26/x
  3. Step 3: Cross multiply
    13,920.08x = 20,897.93 × 11,958.26
  4. Step 4: Simplify right side
    13,920.08x = 249,902,805.81
  5. Step 5: Solve for x
    x = 249,902,805.81/13,920.08
  6. Step 6: Final answer
    x = 17,952.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.