Home / 12,555.39-18,833.12-4,235.45

Finding the Fourth Proportional to 12,555.39, 18,833.12 and 4,235.45

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Solution

The fourth proportional to 12,555.39, 18,833.12 and 4,235.45 is: 6,353.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.39 : 18,833.12 = 4,235.45 : x
  2. Step 2: Convert to fraction form
    12,555.39/18,833.12 = 4,235.45/x
  3. Step 3: Cross multiply
    12,555.39x = 18,833.12 × 4,235.45
  4. Step 4: Simplify right side
    12,555.39x = 79,766,622.76
  5. Step 5: Solve for x
    x = 79,766,622.76/12,555.39
  6. Step 6: Final answer
    x = 6,353.18

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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.