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Finding the Fourth Proportional to 10,075.59, 15,115.95 and 5,919.12

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Solution

The fourth proportional to 10,075.59, 15,115.95 and 5,919.12 is: 8,880.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,075.59 : 15,115.95 = 5,919.12 : x
  2. Step 2: Convert to fraction form
    10,075.59/15,115.95 = 5,919.12/x
  3. Step 3: Cross multiply
    10,075.59x = 15,115.95 × 5,919.12
  4. Step 4: Simplify right side
    10,075.59x = 89,473,121.96
  5. Step 5: Solve for x
    x = 89,473,121.96/10,075.59
  6. Step 6: Final answer
    x = 8,880.19

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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.