Home / 12,283.08-18,421.43-3,515.94

Finding the Fourth Proportional to 12,283.08, 18,421.43 and 3,515.94

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Solution

The fourth proportional to 12,283.08, 18,421.43 and 3,515.94 is: 5,273.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.08 : 18,421.43 = 3,515.94 : x
  2. Step 2: Convert to fraction form
    12,283.08/18,421.43 = 3,515.94/x
  3. Step 3: Cross multiply
    12,283.08x = 18,421.43 × 3,515.94
  4. Step 4: Simplify right side
    12,283.08x = 64,768,625.01
  5. Step 5: Solve for x
    x = 64,768,625.01/12,283.08
  6. Step 6: Final answer
    x = 5,273.00

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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.