Home / 10,178.98-15,269.21-3,158.10

Finding the Fourth Proportional to 10,178.98, 15,269.21 and 3,158.10

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Solution

The fourth proportional to 10,178.98, 15,269.21 and 3,158.10 is: 4,737.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.98 : 15,269.21 = 3,158.10 : x
  2. Step 2: Convert to fraction form
    10,178.98/15,269.21 = 3,158.10/x
  3. Step 3: Cross multiply
    10,178.98x = 15,269.21 × 3,158.10
  4. Step 4: Simplify right side
    10,178.98x = 48,221,692.10
  5. Step 5: Solve for x
    x = 48,221,692.10/10,178.98
  6. Step 6: Final answer
    x = 4,737.38

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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.