Home / 8,831.45-13,247.18-2,988.51

Finding the Fourth Proportional to 8,831.45, 13,247.18 and 2,988.51

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Solution

The fourth proportional to 8,831.45, 13,247.18 and 2,988.51 is: 4,482.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.45 : 13,247.18 = 2,988.51 : x
  2. Step 2: Convert to fraction form
    8,831.45/13,247.18 = 2,988.51/x
  3. Step 3: Cross multiply
    8,831.45x = 13,247.18 × 2,988.51
  4. Step 4: Simplify right side
    8,831.45x = 39,589,314.96
  5. Step 5: Solve for x
    x = 39,589,314.96/8,831.45
  6. Step 6: Final answer
    x = 4,482.77

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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.