Home / 11,693.51-16,131.80-7,217.45

Finding the Fourth Proportional to 11,693.51, 16,131.80 and 7,217.45

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Solution

The fourth proportional to 11,693.51, 16,131.80 and 7,217.45 is: 9,956.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.51 : 16,131.80 = 7,217.45 : x
  2. Step 2: Convert to fraction form
    11,693.51/16,131.80 = 7,217.45/x
  3. Step 3: Cross multiply
    11,693.51x = 16,131.80 × 7,217.45
  4. Step 4: Simplify right side
    11,693.51x = 116,430,423.82
  5. Step 5: Solve for x
    x = 116,430,423.82/11,693.51
  6. Step 6: Final answer
    x = 9,956.84

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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.