Home / 12,555.58-18,833.37-4,764.40

Finding the Fourth Proportional to 12,555.58, 18,833.37 and 4,764.40

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Solution

The fourth proportional to 12,555.58, 18,833.37 and 4,764.40 is: 7,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.58 : 18,833.37 = 4,764.40 : x
  2. Step 2: Convert to fraction form
    12,555.58/18,833.37 = 4,764.40/x
  3. Step 3: Cross multiply
    12,555.58x = 18,833.37 × 4,764.40
  4. Step 4: Simplify right side
    12,555.58x = 89,729,708.03
  5. Step 5: Solve for x
    x = 89,729,708.03/12,555.58
  6. Step 6: Final answer
    x = 7,146.60

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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.