Home / 10,101.21-15,152.58-3,081.81

Finding the Fourth Proportional to 10,101.21, 15,152.58 and 3,081.81

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Solution

The fourth proportional to 10,101.21, 15,152.58 and 3,081.81 is: 4,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.21 : 15,152.58 = 3,081.81 : x
  2. Step 2: Convert to fraction form
    10,101.21/15,152.58 = 3,081.81/x
  3. Step 3: Cross multiply
    10,101.21x = 15,152.58 × 3,081.81
  4. Step 4: Simplify right side
    10,101.21x = 46,697,372.57
  5. Step 5: Solve for x
    x = 46,697,372.57/10,101.21
  6. Step 6: Final answer
    x = 4,622.95

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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.