Home / 12,225.12-18,326.34-4,828.20

Finding the Fourth Proportional to 12,225.12, 18,326.34 and 4,828.20

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Solution

The fourth proportional to 12,225.12, 18,326.34 and 4,828.20 is: 7,237.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.12 : 18,326.34 = 4,828.20 : x
  2. Step 2: Convert to fraction form
    12,225.12/18,326.34 = 4,828.20/x
  3. Step 3: Cross multiply
    12,225.12x = 18,326.34 × 4,828.20
  4. Step 4: Simplify right side
    12,225.12x = 88,483,234.79
  5. Step 5: Solve for x
    x = 88,483,234.79/12,225.12
  6. Step 6: Final answer
    x = 7,237.82

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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.