Home / 18,708.96-28,038.83-8,851.05

Finding the Fourth Proportional to 18,708.96, 28,038.83 and 8,851.05

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Solution

The fourth proportional to 18,708.96, 28,038.83 and 8,851.05 is: 13,264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.96 : 28,038.83 = 8,851.05 : x
  2. Step 2: Convert to fraction form
    18,708.96/28,038.83 = 8,851.05/x
  3. Step 3: Cross multiply
    18,708.96x = 28,038.83 × 8,851.05
  4. Step 4: Simplify right side
    18,708.96x = 248,173,086.27
  5. Step 5: Solve for x
    x = 248,173,086.27/18,708.96
  6. Step 6: Final answer
    x = 13,264.93

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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.