Home / 13,326.89-19,979.53-5,541.53

Finding the Fourth Proportional to 13,326.89, 19,979.53 and 5,541.53

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Solution

The fourth proportional to 13,326.89, 19,979.53 and 5,541.53 is: 8,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.89 : 19,979.53 = 5,541.53 : x
  2. Step 2: Convert to fraction form
    13,326.89/19,979.53 = 5,541.53/x
  3. Step 3: Cross multiply
    13,326.89x = 19,979.53 × 5,541.53
  4. Step 4: Simplify right side
    13,326.89x = 110,717,051.13
  5. Step 5: Solve for x
    x = 110,717,051.13/13,326.89
  6. Step 6: Final answer
    x = 8,307.80

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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.