Home / 7,013.72-10,520.28-2,853.56

Finding the Fourth Proportional to 7,013.72, 10,520.28 and 2,853.56

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Solution

The fourth proportional to 7,013.72, 10,520.28 and 2,853.56 is: 4,280.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.72 : 10,520.28 = 2,853.56 : x
  2. Step 2: Convert to fraction form
    7,013.72/10,520.28 = 2,853.56/x
  3. Step 3: Cross multiply
    7,013.72x = 10,520.28 × 2,853.56
  4. Step 4: Simplify right side
    7,013.72x = 30,020,276.50
  5. Step 5: Solve for x
    x = 30,020,276.50/7,013.72
  6. Step 6: Final answer
    x = 4,280.22

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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.