Home / 19,176.40-28,764.60-12,955.60

Finding the Fourth Proportional to 19,176.40, 28,764.60 and 12,955.60

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Solution

The fourth proportional to 19,176.40, 28,764.60 and 12,955.60 is: 19,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176.40 : 28,764.60 = 12,955.60 : x
  2. Step 2: Convert to fraction form
    19,176.40/28,764.60 = 12,955.60/x
  3. Step 3: Cross multiply
    19,176.40x = 28,764.60 × 12,955.60
  4. Step 4: Simplify right side
    19,176.40x = 372,662,651.76
  5. Step 5: Solve for x
    x = 372,662,651.76/19,176.40
  6. Step 6: Final answer
    x = 19,433.40

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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.