Home / 9,119.21-13,678.81-2,545.56

Finding the Fourth Proportional to 9,119.21, 13,678.81 and 2,545.56

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Solution

The fourth proportional to 9,119.21, 13,678.81 and 2,545.56 is: 3,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.21 : 13,678.81 = 2,545.56 : x
  2. Step 2: Convert to fraction form
    9,119.21/13,678.81 = 2,545.56/x
  3. Step 3: Cross multiply
    9,119.21x = 13,678.81 × 2,545.56
  4. Step 4: Simplify right side
    9,119.21x = 34,820,225.22
  5. Step 5: Solve for x
    x = 34,820,225.22/9,119.21
  6. Step 6: Final answer
    x = 3,818.34

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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.