Home / 10,078.09-15,117.47-4,531.45

Finding the Fourth Proportional to 10,078.09, 15,117.47 and 4,531.45

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Solution

The fourth proportional to 10,078.09, 15,117.47 and 4,531.45 is: 6,797.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.09 : 15,117.47 = 4,531.45 : x
  2. Step 2: Convert to fraction form
    10,078.09/15,117.47 = 4,531.45/x
  3. Step 3: Cross multiply
    10,078.09x = 15,117.47 × 4,531.45
  4. Step 4: Simplify right side
    10,078.09x = 68,503,961.19
  5. Step 5: Solve for x
    x = 68,503,961.19/10,078.09
  6. Step 6: Final answer
    x = 6,797.32

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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.