Home / 10,621.99-15,935.01-5,075.77

Finding the Fourth Proportional to 10,621.99, 15,935.01 and 5,075.77

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Solution

The fourth proportional to 10,621.99, 15,935.01 and 5,075.77 is: 7,614.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.99 : 15,935.01 = 5,075.77 : x
  2. Step 2: Convert to fraction form
    10,621.99/15,935.01 = 5,075.77/x
  3. Step 3: Cross multiply
    10,621.99x = 15,935.01 × 5,075.77
  4. Step 4: Simplify right side
    10,621.99x = 80,882,445.71
  5. Step 5: Solve for x
    x = 80,882,445.71/10,621.99
  6. Step 6: Final answer
    x = 7,614.62

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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.