Home / 18,669.38-28,009.55-5,522.10

Finding the Fourth Proportional to 18,669.38, 28,009.55 and 5,522.10

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Solution

The fourth proportional to 18,669.38, 28,009.55 and 5,522.10 is: 8,284.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.38 : 28,009.55 = 5,522.10 : x
  2. Step 2: Convert to fraction form
    18,669.38/28,009.55 = 5,522.10/x
  3. Step 3: Cross multiply
    18,669.38x = 28,009.55 × 5,522.10
  4. Step 4: Simplify right side
    18,669.38x = 154,671,536.06
  5. Step 5: Solve for x
    x = 154,671,536.06/18,669.38
  6. Step 6: Final answer
    x = 8,284.77

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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.