Home / 13,962.20-19,268.18-7,674.57

Finding the Fourth Proportional to 13,962.20, 19,268.18 and 7,674.57

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Solution

The fourth proportional to 13,962.20, 19,268.18 and 7,674.57 is: 10,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.20 : 19,268.18 = 7,674.57 : x
  2. Step 2: Convert to fraction form
    13,962.20/19,268.18 = 7,674.57/x
  3. Step 3: Cross multiply
    13,962.20x = 19,268.18 × 7,674.57
  4. Step 4: Simplify right side
    13,962.20x = 147,874,957.81
  5. Step 5: Solve for x
    x = 147,874,957.81/13,962.20
  6. Step 6: Final answer
    x = 10,591.10

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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.