Home / 10,078.12-15,117.52-3,504.36

Finding the Fourth Proportional to 10,078.12, 15,117.52 and 3,504.36

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Solution

The fourth proportional to 10,078.12, 15,117.52 and 3,504.36 is: 5,256.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.12 : 15,117.52 = 3,504.36 : x
  2. Step 2: Convert to fraction form
    10,078.12/15,117.52 = 3,504.36/x
  3. Step 3: Cross multiply
    10,078.12x = 15,117.52 × 3,504.36
  4. Step 4: Simplify right side
    10,078.12x = 52,977,232.39
  5. Step 5: Solve for x
    x = 52,977,232.39/10,078.12
  6. Step 6: Final answer
    x = 5,256.66

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1.5x scale

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.