Home / 11,647.81-16,071.51-6,931.18

Finding the Fourth Proportional to 11,647.81, 16,071.51 and 6,931.18

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Solution

The fourth proportional to 11,647.81, 16,071.51 and 6,931.18 is: 9,563.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,647.81 : 16,071.51 = 6,931.18 : x
  2. Step 2: Convert to fraction form
    11,647.81/16,071.51 = 6,931.18/x
  3. Step 3: Cross multiply
    11,647.81x = 16,071.51 × 6,931.18
  4. Step 4: Simplify right side
    11,647.81x = 111,394,528.68
  5. Step 5: Solve for x
    x = 111,394,528.68/11,647.81
  6. Step 6: Final answer
    x = 9,563.56

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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.