Home / 10,986.51-15,161.55-6,207.42

Finding the Fourth Proportional to 10,986.51, 15,161.55 and 6,207.42

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Solution

The fourth proportional to 10,986.51, 15,161.55 and 6,207.42 is: 8,566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.51 : 15,161.55 = 6,207.42 : x
  2. Step 2: Convert to fraction form
    10,986.51/15,161.55 = 6,207.42/x
  3. Step 3: Cross multiply
    10,986.51x = 15,161.55 × 6,207.42
  4. Step 4: Simplify right side
    10,986.51x = 94,114,108.70
  5. Step 5: Solve for x
    x = 94,114,108.70/10,986.51
  6. Step 6: Final answer
    x = 8,566.33

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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.