Home / 13,918.77-20,879.16-5,598.84

Finding the Fourth Proportional to 13,918.77, 20,879.16 and 5,598.84

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Solution

The fourth proportional to 13,918.77, 20,879.16 and 5,598.84 is: 8,398.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.77 : 20,879.16 = 5,598.84 : x
  2. Step 2: Convert to fraction form
    13,918.77/20,879.16 = 5,598.84/x
  3. Step 3: Cross multiply
    13,918.77x = 20,879.16 × 5,598.84
  4. Step 4: Simplify right side
    13,918.77x = 116,899,076.17
  5. Step 5: Solve for x
    x = 116,899,076.17/13,918.77
  6. Step 6: Final answer
    x = 8,398.66

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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.