Home / 11,928.81-16,462.26-6,624.12

Finding the Fourth Proportional to 11,928.81, 16,462.26 and 6,624.12

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Solution

The fourth proportional to 11,928.81, 16,462.26 and 6,624.12 is: 9,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.81 : 16,462.26 = 6,624.12 : x
  2. Step 2: Convert to fraction form
    11,928.81/16,462.26 = 6,624.12/x
  3. Step 3: Cross multiply
    11,928.81x = 16,462.26 × 6,624.12
  4. Step 4: Simplify right side
    11,928.81x = 109,047,985.71
  5. Step 5: Solve for x
    x = 109,047,985.71/11,928.81
  6. Step 6: Final answer
    x = 9,141.56

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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.