Home / 9,013.76-13,521.35-3,171.68

Finding the Fourth Proportional to 9,013.76, 13,521.35 and 3,171.68

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Solution

The fourth proportional to 9,013.76, 13,521.35 and 3,171.68 is: 4,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.76 : 13,521.35 = 3,171.68 : x
  2. Step 2: Convert to fraction form
    9,013.76/13,521.35 = 3,171.68/x
  3. Step 3: Cross multiply
    9,013.76x = 13,521.35 × 3,171.68
  4. Step 4: Simplify right side
    9,013.76x = 42,885,395.37
  5. Step 5: Solve for x
    x = 42,885,395.37/9,013.76
  6. Step 6: Final answer
    x = 4,757.77

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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.