Home / 18,967.37-28,454.69-7,279.67

Finding the Fourth Proportional to 18,967.37, 28,454.69 and 7,279.67

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Solution

The fourth proportional to 18,967.37, 28,454.69 and 7,279.67 is: 10,920.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.37 : 28,454.69 = 7,279.67 : x
  2. Step 2: Convert to fraction form
    18,967.37/28,454.69 = 7,279.67/x
  3. Step 3: Cross multiply
    18,967.37x = 28,454.69 × 7,279.67
  4. Step 4: Simplify right side
    18,967.37x = 207,140,842.49
  5. Step 5: Solve for x
    x = 207,140,842.49/18,967.37
  6. Step 6: Final answer
    x = 10,920.91

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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.