Home / 7,219.60-9,963.18-4,075.18

Finding the Fourth Proportional to 7,219.60, 9,963.18 and 4,075.18

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Solution

The fourth proportional to 7,219.60, 9,963.18 and 4,075.18 is: 5,623.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.60 : 9,963.18 = 4,075.18 : x
  2. Step 2: Convert to fraction form
    7,219.60/9,963.18 = 4,075.18/x
  3. Step 3: Cross multiply
    7,219.60x = 9,963.18 × 4,075.18
  4. Step 4: Simplify right side
    7,219.60x = 40,601,751.87
  5. Step 5: Solve for x
    x = 40,601,751.87/7,219.60
  6. Step 6: Final answer
    x = 5,623.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.