Home / 12,421.06-18,633.87-4,101.64

Finding the Fourth Proportional to 12,421.06, 18,633.87 and 4,101.64

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Solution

The fourth proportional to 12,421.06, 18,633.87 and 4,101.64 is: 6,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421.06 : 18,633.87 = 4,101.64 : x
  2. Step 2: Convert to fraction form
    12,421.06/18,633.87 = 4,101.64/x
  3. Step 3: Cross multiply
    12,421.06x = 18,633.87 × 4,101.64
  4. Step 4: Simplify right side
    12,421.06x = 76,429,426.55
  5. Step 5: Solve for x
    x = 76,429,426.55/12,421.06
  6. Step 6: Final answer
    x = 6,153.21

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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.