Home / 13,915.02-20,872.26-3,526.50

Finding the Fourth Proportional to 13,915.02, 20,872.26 and 3,526.50

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Solution

The fourth proportional to 13,915.02, 20,872.26 and 3,526.50 is: 5,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.02 : 20,872.26 = 3,526.50 : x
  2. Step 2: Convert to fraction form
    13,915.02/20,872.26 = 3,526.50/x
  3. Step 3: Cross multiply
    13,915.02x = 20,872.26 × 3,526.50
  4. Step 4: Simplify right side
    13,915.02x = 73,606,024.89
  5. Step 5: Solve for x
    x = 73,606,024.89/13,915.02
  6. Step 6: Final answer
    x = 5,289.68

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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.