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Finding the Fourth Proportional to 13,339.44, 19,978.02 and 10,547.36

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Solution

The fourth proportional to 13,339.44, 19,978.02 and 10,547.36 is: 15,796.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.44 : 19,978.02 = 10,547.36 : x
  2. Step 2: Convert to fraction form
    13,339.44/19,978.02 = 10,547.36/x
  3. Step 3: Cross multiply
    13,339.44x = 19,978.02 × 10,547.36
  4. Step 4: Simplify right side
    13,339.44x = 210,715,369.03
  5. Step 5: Solve for x
    x = 210,715,369.03/13,339.44
  6. Step 6: Final answer
    x = 15,796.42

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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.