Home / 13,798.48-20,690.58-6,775.36

Finding the Fourth Proportional to 13,798.48, 20,690.58 and 6,775.36

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Solution

The fourth proportional to 13,798.48, 20,690.58 and 6,775.36 is: 10,159.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.48 : 20,690.58 = 6,775.36 : x
  2. Step 2: Convert to fraction form
    13,798.48/20,690.58 = 6,775.36/x
  3. Step 3: Cross multiply
    13,798.48x = 20,690.58 × 6,775.36
  4. Step 4: Simplify right side
    13,798.48x = 140,186,128.11
  5. Step 5: Solve for x
    x = 140,186,128.11/13,798.48
  6. Step 6: Final answer
    x = 10,159.53

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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.