Home / 7,411.54-11,117.03-1,864.81

Finding the Fourth Proportional to 7,411.54, 11,117.03 and 1,864.81

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Solution

The fourth proportional to 7,411.54, 11,117.03 and 1,864.81 is: 2,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.54 : 11,117.03 = 1,864.81 : x
  2. Step 2: Convert to fraction form
    7,411.54/11,117.03 = 1,864.81/x
  3. Step 3: Cross multiply
    7,411.54x = 11,117.03 × 1,864.81
  4. Step 4: Simplify right side
    7,411.54x = 20,731,163.78
  5. Step 5: Solve for x
    x = 20,731,163.78/7,411.54
  6. Step 6: Final answer
    x = 2,797.15

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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.