Home / 9,085.20-13,621.40-3,536.40

Finding the Fourth Proportional to 9,085.20, 13,621.40 and 3,536.40

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Solution

The fourth proportional to 9,085.20, 13,621.40 and 3,536.40 is: 5,302.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,085.20 : 13,621.40 = 3,536.40 : x
  2. Step 2: Convert to fraction form
    9,085.20/13,621.40 = 3,536.40/x
  3. Step 3: Cross multiply
    9,085.20x = 13,621.40 × 3,536.40
  4. Step 4: Simplify right side
    9,085.20x = 48,170,718.96
  5. Step 5: Solve for x
    x = 48,170,718.96/9,085.20
  6. Step 6: Final answer
    x = 5,302.11

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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.