Home / 11,421.41-17,117.87-6,143.31

Finding the Fourth Proportional to 11,421.41, 17,117.87 and 6,143.31

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Solution

The fourth proportional to 11,421.41, 17,117.87 and 6,143.31 is: 9,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.41 : 17,117.87 = 6,143.31 : x
  2. Step 2: Convert to fraction form
    11,421.41/17,117.87 = 6,143.31/x
  3. Step 3: Cross multiply
    11,421.41x = 17,117.87 × 6,143.31
  4. Step 4: Simplify right side
    11,421.41x = 105,160,351.23
  5. Step 5: Solve for x
    x = 105,160,351.23/11,421.41
  6. Step 6: Final answer
    x = 9,207.30

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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.