Home / 12,485.70-18,716.29-6,236.35

Finding the Fourth Proportional to 12,485.70, 18,716.29 and 6,236.35

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Solution

The fourth proportional to 12,485.70, 18,716.29 and 6,236.35 is: 9,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.70 : 18,716.29 = 6,236.35 : x
  2. Step 2: Convert to fraction form
    12,485.70/18,716.29 = 6,236.35/x
  3. Step 3: Cross multiply
    12,485.70x = 18,716.29 × 6,236.35
  4. Step 4: Simplify right side
    12,485.70x = 116,721,272.76
  5. Step 5: Solve for x
    x = 116,721,272.76/12,485.70
  6. Step 6: Final answer
    x = 9,348.40

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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.