Home / 9,420.14-14,123.80-3,177.20

Finding the Fourth Proportional to 9,420.14, 14,123.80 and 3,177.20

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Solution

The fourth proportional to 9,420.14, 14,123.80 and 3,177.20 is: 4,763.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.14 : 14,123.80 = 3,177.20 : x
  2. Step 2: Convert to fraction form
    9,420.14/14,123.80 = 3,177.20/x
  3. Step 3: Cross multiply
    9,420.14x = 14,123.80 × 3,177.20
  4. Step 4: Simplify right side
    9,420.14x = 44,874,137.36
  5. Step 5: Solve for x
    x = 44,874,137.36/9,420.14
  6. Step 6: Final answer
    x = 4,763.64

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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.