Home / 13,276.80-19,919.81-5,886.45

Finding the Fourth Proportional to 13,276.80, 19,919.81 and 5,886.45

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Solution

The fourth proportional to 13,276.80, 19,919.81 and 5,886.45 is: 8,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.80 : 19,919.81 = 5,886.45 : x
  2. Step 2: Convert to fraction form
    13,276.80/19,919.81 = 5,886.45/x
  3. Step 3: Cross multiply
    13,276.80x = 19,919.81 × 5,886.45
  4. Step 4: Simplify right side
    13,276.80x = 117,256,915.99
  5. Step 5: Solve for x
    x = 117,256,915.99/13,276.80
  6. Step 6: Final answer
    x = 8,831.72

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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.