Home / 18,274.14-25,218.33-9,890.64

Finding the Fourth Proportional to 18,274.14, 25,218.33 and 9,890.64

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Solution

The fourth proportional to 18,274.14, 25,218.33 and 9,890.64 is: 13,649.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.14 : 25,218.33 = 9,890.64 : x
  2. Step 2: Convert to fraction form
    18,274.14/25,218.33 = 9,890.64/x
  3. Step 3: Cross multiply
    18,274.14x = 25,218.33 × 9,890.64
  4. Step 4: Simplify right side
    18,274.14x = 249,425,423.43
  5. Step 5: Solve for x
    x = 249,425,423.43/18,274.14
  6. Step 6: Final answer
    x = 13,649.09

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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.