Home / 14,159.34-21,249.95-9,990.41

Finding the Fourth Proportional to 14,159.34, 21,249.95 and 9,990.41

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Solution

The fourth proportional to 14,159.34, 21,249.95 and 9,990.41 is: 14,993.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.34 : 21,249.95 = 9,990.41 : x
  2. Step 2: Convert to fraction form
    14,159.34/21,249.95 = 9,990.41/x
  3. Step 3: Cross multiply
    14,159.34x = 21,249.95 × 9,990.41
  4. Step 4: Simplify right side
    14,159.34x = 212,295,556.78
  5. Step 5: Solve for x
    x = 212,295,556.78/14,159.34
  6. Step 6: Final answer
    x = 14,993.32

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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.