Home / 19,364.40-26,720.67-10,865.37

Finding the Fourth Proportional to 19,364.40, 26,720.67 and 10,865.37

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Solution

The fourth proportional to 19,364.40, 26,720.67 and 10,865.37 is: 14,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,364.40 : 26,720.67 = 10,865.37 : x
  2. Step 2: Convert to fraction form
    19,364.40/26,720.67 = 10,865.37/x
  3. Step 3: Cross multiply
    19,364.40x = 26,720.67 × 10,865.37
  4. Step 4: Simplify right side
    19,364.40x = 290,329,911.87
  5. Step 5: Solve for x
    x = 290,329,911.87/19,364.40
  6. Step 6: Final answer
    x = 14,992.98

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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.