Home / 12,610.40-18,915.60-8,673.80

Finding the Fourth Proportional to 12,610.40, 18,915.60 and 8,673.80

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Solution

The fourth proportional to 12,610.40, 18,915.60 and 8,673.80 is: 13,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.40 : 18,915.60 = 8,673.80 : x
  2. Step 2: Convert to fraction form
    12,610.40/18,915.60 = 8,673.80/x
  3. Step 3: Cross multiply
    12,610.40x = 18,915.60 × 8,673.80
  4. Step 4: Simplify right side
    12,610.40x = 164,070,131.28
  5. Step 5: Solve for x
    x = 164,070,131.28/12,610.40
  6. Step 6: Final answer
    x = 13,010.70

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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.