Home / 19,397.61-29,101.02-6,918.75

Finding the Fourth Proportional to 19,397.61, 29,101.02 and 6,918.75

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Solution

The fourth proportional to 19,397.61, 29,101.02 and 6,918.75 is: 10,379.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,397.61 : 29,101.02 = 6,918.75 : x
  2. Step 2: Convert to fraction form
    19,397.61/29,101.02 = 6,918.75/x
  3. Step 3: Cross multiply
    19,397.61x = 29,101.02 × 6,918.75
  4. Step 4: Simplify right side
    19,397.61x = 201,342,682.13
  5. Step 5: Solve for x
    x = 201,342,682.13/19,397.61
  6. Step 6: Final answer
    x = 10,379.77

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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.