Home / 12,573.56-18,865.80-4,784.60

Finding the Fourth Proportional to 12,573.56, 18,865.80 and 4,784.60

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Solution

The fourth proportional to 12,573.56, 18,865.80 and 4,784.60 is: 7,178.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.56 : 18,865.80 = 4,784.60 : x
  2. Step 2: Convert to fraction form
    12,573.56/18,865.80 = 4,784.60/x
  3. Step 3: Cross multiply
    12,573.56x = 18,865.80 × 4,784.60
  4. Step 4: Simplify right side
    12,573.56x = 90,265,306.68
  5. Step 5: Solve for x
    x = 90,265,306.68/12,573.56
  6. Step 6: Final answer
    x = 7,178.98

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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.