Home / 13,276.90-19,915.35-12,693.70

Finding the Fourth Proportional to 13,276.90, 19,915.35 and 12,693.70

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Solution

The fourth proportional to 13,276.90, 19,915.35 and 12,693.70 is: 19,040.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.90 : 19,915.35 = 12,693.70 : x
  2. Step 2: Convert to fraction form
    13,276.90/19,915.35 = 12,693.70/x
  3. Step 3: Cross multiply
    13,276.90x = 19,915.35 × 12,693.70
  4. Step 4: Simplify right side
    13,276.90x = 252,799,478.30
  5. Step 5: Solve for x
    x = 252,799,478.30/13,276.90
  6. Step 6: Final answer
    x = 19,040.55

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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.