Home / 18,749.60-28,127.78-6,268.40

Finding the Fourth Proportional to 18,749.60, 28,127.78 and 6,268.40

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Solution

The fourth proportional to 18,749.60, 28,127.78 and 6,268.40 is: 9,403.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.60 : 28,127.78 = 6,268.40 : x
  2. Step 2: Convert to fraction form
    18,749.60/28,127.78 = 6,268.40/x
  3. Step 3: Cross multiply
    18,749.60x = 28,127.78 × 6,268.40
  4. Step 4: Simplify right side
    18,749.60x = 176,316,176.15
  5. Step 5: Solve for x
    x = 176,316,176.15/18,749.60
  6. Step 6: Final answer
    x = 9,403.73

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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.