Home / 11,829.81-16,324.56-7,113.18

Finding the Fourth Proportional to 11,829.81, 16,324.56 and 7,113.18

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Solution

The fourth proportional to 11,829.81, 16,324.56 and 7,113.18 is: 9,815.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.81 : 16,324.56 = 7,113.18 : x
  2. Step 2: Convert to fraction form
    11,829.81/16,324.56 = 7,113.18/x
  3. Step 3: Cross multiply
    11,829.81x = 16,324.56 × 7,113.18
  4. Step 4: Simplify right side
    11,829.81x = 116,119,533.70
  5. Step 5: Solve for x
    x = 116,119,533.70/11,829.81
  6. Step 6: Final answer
    x = 9,815.84

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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.