Home / 8,072.36-11,139.74-4,715.67

Finding the Fourth Proportional to 8,072.36, 11,139.74 and 4,715.67

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Solution

The fourth proportional to 8,072.36, 11,139.74 and 4,715.67 is: 6,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.36 : 11,139.74 = 4,715.67 : x
  2. Step 2: Convert to fraction form
    8,072.36/11,139.74 = 4,715.67/x
  3. Step 3: Cross multiply
    8,072.36x = 11,139.74 × 4,715.67
  4. Step 4: Simplify right side
    8,072.36x = 52,531,337.47
  5. Step 5: Solve for x
    x = 52,531,337.47/8,072.36
  6. Step 6: Final answer
    x = 6,507.56

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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.