Home / 14,060.30-21,087.57-5,172.57

Finding the Fourth Proportional to 14,060.30, 21,087.57 and 5,172.57

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Solution

The fourth proportional to 14,060.30, 21,087.57 and 5,172.57 is: 7,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,060.30 : 21,087.57 = 5,172.57 : x
  2. Step 2: Convert to fraction form
    14,060.30/21,087.57 = 5,172.57/x
  3. Step 3: Cross multiply
    14,060.30x = 21,087.57 × 5,172.57
  4. Step 4: Simplify right side
    14,060.30x = 109,076,931.95
  5. Step 5: Solve for x
    x = 109,076,931.95/14,060.30
  6. Step 6: Final answer
    x = 7,757.80

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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.