Home / 10,102.68-15,075.09-7,998.84

Finding the Fourth Proportional to 10,102.68, 15,075.09 and 7,998.84

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Solution

The fourth proportional to 10,102.68, 15,075.09 and 7,998.84 is: 11,935.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.68 : 15,075.09 = 7,998.84 : x
  2. Step 2: Convert to fraction form
    10,102.68/15,075.09 = 7,998.84/x
  3. Step 3: Cross multiply
    10,102.68x = 15,075.09 × 7,998.84
  4. Step 4: Simplify right side
    10,102.68x = 120,583,232.90
  5. Step 5: Solve for x
    x = 120,583,232.90/10,102.68
  6. Step 6: Final answer
    x = 11,935.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.