Home / 11,823.40-16,319.70-8,287.48

Finding the Fourth Proportional to 11,823.40, 16,319.70 and 8,287.48

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Solution

The fourth proportional to 11,823.40, 16,319.70 and 8,287.48 is: 11,439.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.40 : 16,319.70 = 8,287.48 : x
  2. Step 2: Convert to fraction form
    11,823.40/16,319.70 = 8,287.48/x
  3. Step 3: Cross multiply
    11,823.40x = 16,319.70 × 8,287.48
  4. Step 4: Simplify right side
    11,823.40x = 135,249,187.36
  5. Step 5: Solve for x
    x = 135,249,187.36/11,823.40
  6. Step 6: Final answer
    x = 11,439.11

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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.