Home / 13,915.74-20,876.70-4,055.76

Finding the Fourth Proportional to 13,915.74, 20,876.70 and 4,055.76

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Solution

The fourth proportional to 13,915.74, 20,876.70 and 4,055.76 is: 6,084.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.74 : 20,876.70 = 4,055.76 : x
  2. Step 2: Convert to fraction form
    13,915.74/20,876.70 = 4,055.76/x
  3. Step 3: Cross multiply
    13,915.74x = 20,876.70 × 4,055.76
  4. Step 4: Simplify right side
    13,915.74x = 84,670,884.79
  5. Step 5: Solve for x
    x = 84,670,884.79/13,915.74
  6. Step 6: Final answer
    x = 6,084.54

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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.