Home / 12,130.85-18,191.41-4,335.41

Finding the Fourth Proportional to 12,130.85, 18,191.41 and 4,335.41

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Solution

The fourth proportional to 12,130.85, 18,191.41 and 4,335.41 is: 6,501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.85 : 18,191.41 = 4,335.41 : x
  2. Step 2: Convert to fraction form
    12,130.85/18,191.41 = 4,335.41/x
  3. Step 3: Cross multiply
    12,130.85x = 18,191.41 × 4,335.41
  4. Step 4: Simplify right side
    12,130.85x = 78,867,220.83
  5. Step 5: Solve for x
    x = 78,867,220.83/12,130.85
  6. Step 6: Final answer
    x = 6,501.38

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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.