Home / 13,823.78-19,076.63-8,158.50

Finding the Fourth Proportional to 13,823.78, 19,076.63 and 8,158.50

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Solution

The fourth proportional to 13,823.78, 19,076.63 and 8,158.50 is: 11,258.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.78 : 19,076.63 = 8,158.50 : x
  2. Step 2: Convert to fraction form
    13,823.78/19,076.63 = 8,158.50/x
  3. Step 3: Cross multiply
    13,823.78x = 19,076.63 × 8,158.50
  4. Step 4: Simplify right side
    13,823.78x = 155,636,645.06
  5. Step 5: Solve for x
    x = 155,636,645.06/13,823.78
  6. Step 6: Final answer
    x = 11,258.62

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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.