Home / 18,828.45-28,225.40-6,507.81

Finding the Fourth Proportional to 18,828.45, 28,225.40 and 6,507.81

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Solution

The fourth proportional to 18,828.45, 28,225.40 and 6,507.81 is: 9,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.45 : 28,225.40 = 6,507.81 : x
  2. Step 2: Convert to fraction form
    18,828.45/28,225.40 = 6,507.81/x
  3. Step 3: Cross multiply
    18,828.45x = 28,225.40 × 6,507.81
  4. Step 4: Simplify right side
    18,828.45x = 183,685,540.37
  5. Step 5: Solve for x
    x = 183,685,540.37/18,828.45
  6. Step 6: Final answer
    x = 9,755.74

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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.