Home / 12,518.37-18,776.88-3,158.28

Finding the Fourth Proportional to 12,518.37, 18,776.88 and 3,158.28

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Solution

The fourth proportional to 12,518.37, 18,776.88 and 3,158.28 is: 4,737.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.37 : 18,776.88 = 3,158.28 : x
  2. Step 2: Convert to fraction form
    12,518.37/18,776.88 = 3,158.28/x
  3. Step 3: Cross multiply
    12,518.37x = 18,776.88 × 3,158.28
  4. Step 4: Simplify right side
    12,518.37x = 59,302,644.57
  5. Step 5: Solve for x
    x = 59,302,644.57/12,518.37
  6. Step 6: Final answer
    x = 4,737.25

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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.