Home / 13,818.76-19,076.90-8,155.23

Finding the Fourth Proportional to 13,818.76, 19,076.90 and 8,155.23

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Solution

The fourth proportional to 13,818.76, 19,076.90 and 8,155.23 is: 11,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.76 : 19,076.90 = 8,155.23 : x
  2. Step 2: Convert to fraction form
    13,818.76/19,076.90 = 8,155.23/x
  3. Step 3: Cross multiply
    13,818.76x = 19,076.90 × 8,155.23
  4. Step 4: Simplify right side
    13,818.76x = 155,576,582.46
  5. Step 5: Solve for x
    x = 155,576,582.46/13,818.76
  6. Step 6: Final answer
    x = 11,258.36

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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.