Home / 10,916.96-16,376.56-5,075.28

Finding the Fourth Proportional to 10,916.96, 16,376.56 and 5,075.28

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Solution

The fourth proportional to 10,916.96, 16,376.56 and 5,075.28 is: 7,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.96 : 16,376.56 = 5,075.28 : x
  2. Step 2: Convert to fraction form
    10,916.96/16,376.56 = 5,075.28/x
  3. Step 3: Cross multiply
    10,916.96x = 16,376.56 × 5,075.28
  4. Step 4: Simplify right side
    10,916.96x = 83,115,627.44
  5. Step 5: Solve for x
    x = 83,115,627.44/10,916.96
  6. Step 6: Final answer
    x = 7,613.44

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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.