Home / 9,078.35-12,530.50-5,100.74

Finding the Fourth Proportional to 9,078.35, 12,530.50 and 5,100.74

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Solution

The fourth proportional to 9,078.35, 12,530.50 and 5,100.74 is: 7,040.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.35 : 12,530.50 = 5,100.74 : x
  2. Step 2: Convert to fraction form
    9,078.35/12,530.50 = 5,100.74/x
  3. Step 3: Cross multiply
    9,078.35x = 12,530.50 × 5,100.74
  4. Step 4: Simplify right side
    9,078.35x = 63,914,794.16
  5. Step 5: Solve for x
    x = 63,914,794.16/9,078.35
  6. Step 6: Final answer
    x = 7,040.36

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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.