Home / 18,935.50-28,406.90-8,547.26

Finding the Fourth Proportional to 18,935.50, 28,406.90 and 8,547.26

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Solution

The fourth proportional to 18,935.50, 28,406.90 and 8,547.26 is: 12,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.50 : 28,406.90 = 8,547.26 : x
  2. Step 2: Convert to fraction form
    18,935.50/28,406.90 = 8,547.26/x
  3. Step 3: Cross multiply
    18,935.50x = 28,406.90 × 8,547.26
  4. Step 4: Simplify right side
    18,935.50x = 242,801,160.09
  5. Step 5: Solve for x
    x = 242,801,160.09/18,935.50
  6. Step 6: Final answer
    x = 12,822.54

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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.