Home / 10,284.03-15,423.64-2,889.20

Finding the Fourth Proportional to 10,284.03, 15,423.64 and 2,889.20

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Solution

The fourth proportional to 10,284.03, 15,423.64 and 2,889.20 is: 4,333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.03 : 15,423.64 = 2,889.20 : x
  2. Step 2: Convert to fraction form
    10,284.03/15,423.64 = 2,889.20/x
  3. Step 3: Cross multiply
    10,284.03x = 15,423.64 × 2,889.20
  4. Step 4: Simplify right side
    10,284.03x = 44,561,980.69
  5. Step 5: Solve for x
    x = 44,561,980.69/10,284.03
  6. Step 6: Final answer
    x = 4,333.12

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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.