Home / 7,017.15-10,528.97-3,121.05

Finding the Fourth Proportional to 7,017.15, 10,528.97 and 3,121.05

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Solution

The fourth proportional to 7,017.15, 10,528.97 and 3,121.05 is: 4,683.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.15 : 10,528.97 = 3,121.05 : x
  2. Step 2: Convert to fraction form
    7,017.15/10,528.97 = 3,121.05/x
  3. Step 3: Cross multiply
    7,017.15x = 10,528.97 × 3,121.05
  4. Step 4: Simplify right side
    7,017.15x = 32,861,426.21
  5. Step 5: Solve for x
    x = 32,861,426.21/7,017.15
  6. Step 6: Final answer
    x = 4,683.02

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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.