Home / 7,186.20-10,715.84-6,312.28

Finding the Fourth Proportional to 7,186.20, 10,715.84 and 6,312.28

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Solution

The fourth proportional to 7,186.20, 10,715.84 and 6,312.28 is: 9,412.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.20 : 10,715.84 = 6,312.28 : x
  2. Step 2: Convert to fraction form
    7,186.20/10,715.84 = 6,312.28/x
  3. Step 3: Cross multiply
    7,186.20x = 10,715.84 × 6,312.28
  4. Step 4: Simplify right side
    7,186.20x = 67,641,324.16
  5. Step 5: Solve for x
    x = 67,641,324.16/7,186.20
  6. Step 6: Final answer
    x = 9,412.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.