Home / 8,831.56-13,247.36-2,988.63

Finding the Fourth Proportional to 8,831.56, 13,247.36 and 2,988.63

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Solution

The fourth proportional to 8,831.56, 13,247.36 and 2,988.63 is: 4,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.56 : 13,247.36 = 2,988.63 : x
  2. Step 2: Convert to fraction form
    8,831.56/13,247.36 = 2,988.63/x
  3. Step 3: Cross multiply
    8,831.56x = 13,247.36 × 2,988.63
  4. Step 4: Simplify right side
    8,831.56x = 39,591,457.52
  5. Step 5: Solve for x
    x = 39,591,457.52/8,831.56
  6. Step 6: Final answer
    x = 4,482.95

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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.