Home / 6,126.56-8,457.23-4,139.81

Finding the Fourth Proportional to 6,126.56, 8,457.23 and 4,139.81

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Solution

The fourth proportional to 6,126.56, 8,457.23 and 4,139.81 is: 5,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,126.56 : 8,457.23 = 4,139.81 : x
  2. Step 2: Convert to fraction form
    6,126.56/8,457.23 = 4,139.81/x
  3. Step 3: Cross multiply
    6,126.56x = 8,457.23 × 4,139.81
  4. Step 4: Simplify right side
    6,126.56x = 35,011,297.45
  5. Step 5: Solve for x
    x = 35,011,297.45/6,126.56
  6. Step 6: Final answer
    x = 5,714.67

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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.