Home / 11,071.65-15,278.33-6,290.97

Finding the Fourth Proportional to 11,071.65, 15,278.33 and 6,290.97

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Solution

The fourth proportional to 11,071.65, 15,278.33 and 6,290.97 is: 8,681.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,071.65 : 15,278.33 = 6,290.97 : x
  2. Step 2: Convert to fraction form
    11,071.65/15,278.33 = 6,290.97/x
  3. Step 3: Cross multiply
    11,071.65x = 15,278.33 × 6,290.97
  4. Step 4: Simplify right side
    11,071.65x = 96,115,407.83
  5. Step 5: Solve for x
    x = 96,115,407.83/11,071.65
  6. Step 6: Final answer
    x = 8,681.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.