Home / 11,312.80-16,970.10-3,521.62

Finding the Fourth Proportional to 11,312.80, 16,970.10 and 3,521.62

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Solution

The fourth proportional to 11,312.80, 16,970.10 and 3,521.62 is: 5,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.80 : 16,970.10 = 3,521.62 : x
  2. Step 2: Convert to fraction form
    11,312.80/16,970.10 = 3,521.62/x
  3. Step 3: Cross multiply
    11,312.80x = 16,970.10 × 3,521.62
  4. Step 4: Simplify right side
    11,312.80x = 59,762,243.56
  5. Step 5: Solve for x
    x = 59,762,243.56/11,312.80
  6. Step 6: Final answer
    x = 5,282.71

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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.