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Finding the Fourth Proportional to 10,728.36, 16,075.00 and 10,318.30

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Solution

The fourth proportional to 10,728.36, 16,075.00 and 10,318.30 is: 15,460.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.36 : 16,075.00 = 10,318.30 : x
  2. Step 2: Convert to fraction form
    10,728.36/16,075.00 = 10,318.30/x
  3. Step 3: Cross multiply
    10,728.36x = 16,075.00 × 10,318.30
  4. Step 4: Simplify right side
    10,728.36x = 165,866,606.52
  5. Step 5: Solve for x
    x = 165,866,606.52/10,728.36
  6. Step 6: Final answer
    x = 15,460.57

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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.