Home / 12,224.40-18,331.20-4,826.40

Finding the Fourth Proportional to 12,224.40, 18,331.20 and 4,826.40

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Solution

The fourth proportional to 12,224.40, 18,331.20 and 4,826.40 is: 7,237.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.40 : 18,331.20 = 4,826.40 : x
  2. Step 2: Convert to fraction form
    12,224.40/18,331.20 = 4,826.40/x
  3. Step 3: Cross multiply
    12,224.40x = 18,331.20 × 4,826.40
  4. Step 4: Simplify right side
    12,224.40x = 88,473,703.68
  5. Step 5: Solve for x
    x = 88,473,703.68/12,224.40
  6. Step 6: Final answer
    x = 7,237.47

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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.