Home / 7,678.20-11,501.10-6,025.80

Finding the Fourth Proportional to 7,678.20, 11,501.10 and 6,025.80

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Solution

The fourth proportional to 7,678.20, 11,501.10 and 6,025.80 is: 9,025.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.20 : 11,501.10 = 6,025.80 : x
  2. Step 2: Convert to fraction form
    7,678.20/11,501.10 = 6,025.80/x
  3. Step 3: Cross multiply
    7,678.20x = 11,501.10 × 6,025.80
  4. Step 4: Simplify right side
    7,678.20x = 69,303,328.38
  5. Step 5: Solve for x
    x = 69,303,328.38/7,678.20
  6. Step 6: Final answer
    x = 9,025.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.