Home / 10,284.12-15,426.77-2,889.15

Finding the Fourth Proportional to 10,284.12, 15,426.77 and 2,889.15

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Solution

The fourth proportional to 10,284.12, 15,426.77 and 2,889.15 is: 4,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.12 : 15,426.77 = 2,889.15 : x
  2. Step 2: Convert to fraction form
    10,284.12/15,426.77 = 2,889.15/x
  3. Step 3: Cross multiply
    10,284.12x = 15,426.77 × 2,889.15
  4. Step 4: Simplify right side
    10,284.12x = 44,570,317.16
  5. Step 5: Solve for x
    x = 44,570,317.16/10,284.12
  6. Step 6: Final answer
    x = 4,333.90

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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.