Home / 13,197.78-19,798.86-4,877.82

Finding the Fourth Proportional to 13,197.78, 19,798.86 and 4,877.82

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Solution

The fourth proportional to 13,197.78, 19,798.86 and 4,877.82 is: 7,317.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.78 : 19,798.86 = 4,877.82 : x
  2. Step 2: Convert to fraction form
    13,197.78/19,798.86 = 4,877.82/x
  3. Step 3: Cross multiply
    13,197.78x = 19,798.86 × 4,877.82
  4. Step 4: Simplify right side
    13,197.78x = 96,575,275.29
  5. Step 5: Solve for x
    x = 96,575,275.29/13,197.78
  6. Step 6: Final answer
    x = 7,317.54

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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.