Home / 13,665.89-20,498.84-10,550.45

Finding the Fourth Proportional to 13,665.89, 20,498.84 and 10,550.45

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Solution

The fourth proportional to 13,665.89, 20,498.84 and 10,550.45 is: 15,825.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.89 : 20,498.84 = 10,550.45 : x
  2. Step 2: Convert to fraction form
    13,665.89/20,498.84 = 10,550.45/x
  3. Step 3: Cross multiply
    13,665.89x = 20,498.84 × 10,550.45
  4. Step 4: Simplify right side
    13,665.89x = 216,271,986.48
  5. Step 5: Solve for x
    x = 216,271,986.48/13,665.89
  6. Step 6: Final answer
    x = 15,825.68

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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.