Home / 7,815.63-10,786.19-4,457.67

Finding the Fourth Proportional to 7,815.63, 10,786.19 and 4,457.67

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Solution

The fourth proportional to 7,815.63, 10,786.19 and 4,457.67 is: 6,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.63 : 10,786.19 = 4,457.67 : x
  2. Step 2: Convert to fraction form
    7,815.63/10,786.19 = 4,457.67/x
  3. Step 3: Cross multiply
    7,815.63x = 10,786.19 × 4,457.67
  4. Step 4: Simplify right side
    7,815.63x = 48,081,316.39
  5. Step 5: Solve for x
    x = 48,081,316.39/7,815.63
  6. Step 6: Final answer
    x = 6,151.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.