Home / 7,621.40-11,433.72-2,356.76

Finding the Fourth Proportional to 7,621.40, 11,433.72 and 2,356.76

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Solution

The fourth proportional to 7,621.40, 11,433.72 and 2,356.76 is: 3,535.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.40 : 11,433.72 = 2,356.76 : x
  2. Step 2: Convert to fraction form
    7,621.40/11,433.72 = 2,356.76/x
  3. Step 3: Cross multiply
    7,621.40x = 11,433.72 × 2,356.76
  4. Step 4: Simplify right side
    7,621.40x = 26,946,533.95
  5. Step 5: Solve for x
    x = 26,946,533.95/7,621.40
  6. Step 6: Final answer
    x = 3,535.64

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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.