Home / 7,017.68-10,518.96-3,555.20

Finding the Fourth Proportional to 7,017.68, 10,518.96 and 3,555.20

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Solution

The fourth proportional to 7,017.68, 10,518.96 and 3,555.20 is: 5,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.68 : 10,518.96 = 3,555.20 : x
  2. Step 2: Convert to fraction form
    7,017.68/10,518.96 = 3,555.20/x
  3. Step 3: Cross multiply
    7,017.68x = 10,518.96 × 3,555.20
  4. Step 4: Simplify right side
    7,017.68x = 37,397,006.59
  5. Step 5: Solve for x
    x = 37,397,006.59/7,017.68
  6. Step 6: Final answer
    x = 5,328.97

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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.