Home / 10,128.66-15,196.64-3,555.87

Finding the Fourth Proportional to 10,128.66, 15,196.64 and 3,555.87

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Solution

The fourth proportional to 10,128.66, 15,196.64 and 3,555.87 is: 5,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.66 : 15,196.64 = 3,555.87 : x
  2. Step 2: Convert to fraction form
    10,128.66/15,196.64 = 3,555.87/x
  3. Step 3: Cross multiply
    10,128.66x = 15,196.64 × 3,555.87
  4. Step 4: Simplify right side
    10,128.66x = 54,037,258.50
  5. Step 5: Solve for x
    x = 54,037,258.50/10,128.66
  6. Step 6: Final answer
    x = 5,335.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.