Home / 10,471.25-15,709.07-3,075.12

Finding the Fourth Proportional to 10,471.25, 15,709.07 and 3,075.12

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Solution

The fourth proportional to 10,471.25, 15,709.07 and 3,075.12 is: 4,613.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,471.25 : 15,709.07 = 3,075.12 : x
  2. Step 2: Convert to fraction form
    10,471.25/15,709.07 = 3,075.12/x
  3. Step 3: Cross multiply
    10,471.25x = 15,709.07 × 3,075.12
  4. Step 4: Simplify right side
    10,471.25x = 48,307,283.03
  5. Step 5: Solve for x
    x = 48,307,283.03/10,471.25
  6. Step 6: Final answer
    x = 4,613.32

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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.