Home / 15,943.21-23,915.23-4,256.80

Finding the Fourth Proportional to 15,943.21, 23,915.23 and 4,256.80

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Solution

The fourth proportional to 15,943.21, 23,915.23 and 4,256.80 is: 6,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.21 : 23,915.23 = 4,256.80 : x
  2. Step 2: Convert to fraction form
    15,943.21/23,915.23 = 4,256.80/x
  3. Step 3: Cross multiply
    15,943.21x = 23,915.23 × 4,256.80
  4. Step 4: Simplify right side
    15,943.21x = 101,802,280.63
  5. Step 5: Solve for x
    x = 101,802,280.63/15,943.21
  6. Step 6: Final answer
    x = 6,385.31

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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.