Home / 7,021.14-9,684.85-4,186.70

Finding the Fourth Proportional to 7,021.14, 9,684.85 and 4,186.70

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Solution

The fourth proportional to 7,021.14, 9,684.85 and 4,186.70 is: 5,775.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.14 : 9,684.85 = 4,186.70 : x
  2. Step 2: Convert to fraction form
    7,021.14/9,684.85 = 4,186.70/x
  3. Step 3: Cross multiply
    7,021.14x = 9,684.85 × 4,186.70
  4. Step 4: Simplify right side
    7,021.14x = 40,547,561.50
  5. Step 5: Solve for x
    x = 40,547,561.50/7,021.14
  6. Step 6: Final answer
    x = 5,775.07

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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.