Home / 8,831.86-13,247.45-2,988.47

Finding the Fourth Proportional to 8,831.86, 13,247.45 and 2,988.47

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Solution

The fourth proportional to 8,831.86, 13,247.45 and 2,988.47 is: 4,482.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.86 : 13,247.45 = 2,988.47 : x
  2. Step 2: Convert to fraction form
    8,831.86/13,247.45 = 2,988.47/x
  3. Step 3: Cross multiply
    8,831.86x = 13,247.45 × 2,988.47
  4. Step 4: Simplify right side
    8,831.86x = 39,589,599.03
  5. Step 5: Solve for x
    x = 39,589,599.03/8,831.86
  6. Step 6: Final answer
    x = 4,482.59

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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.