Home / 10,075.90-15,115.32-3,500.32

Finding the Fourth Proportional to 10,075.90, 15,115.32 and 3,500.32

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Solution

The fourth proportional to 10,075.90, 15,115.32 and 3,500.32 is: 5,250.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,075.90 : 15,115.32 = 3,500.32 : x
  2. Step 2: Convert to fraction form
    10,075.90/15,115.32 = 3,500.32/x
  3. Step 3: Cross multiply
    10,075.90x = 15,115.32 × 3,500.32
  4. Step 4: Simplify right side
    10,075.90x = 52,908,456.90
  5. Step 5: Solve for x
    x = 52,908,456.90/10,075.90
  6. Step 6: Final answer
    x = 5,250.99

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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.