Home / 18,735.21-28,088.96-8,862.93

Finding the Fourth Proportional to 18,735.21, 28,088.96 and 8,862.93

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Solution

The fourth proportional to 18,735.21, 28,088.96 and 8,862.93 is: 13,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.21 : 28,088.96 = 8,862.93 : x
  2. Step 2: Convert to fraction form
    18,735.21/28,088.96 = 8,862.93/x
  3. Step 3: Cross multiply
    18,735.21x = 28,088.96 × 8,862.93
  4. Step 4: Simplify right side
    18,735.21x = 248,950,441.94
  5. Step 5: Solve for x
    x = 248,950,441.94/18,735.21
  6. Step 6: Final answer
    x = 13,287.84

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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.