Home / 13,281.94-19,918.14-4,395.64

Finding the Fourth Proportional to 13,281.94, 19,918.14 and 4,395.64

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Solution

The fourth proportional to 13,281.94, 19,918.14 and 4,395.64 is: 6,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.94 : 19,918.14 = 4,395.64 : x
  2. Step 2: Convert to fraction form
    13,281.94/19,918.14 = 4,395.64/x
  3. Step 3: Cross multiply
    13,281.94x = 19,918.14 × 4,395.64
  4. Step 4: Simplify right side
    13,281.94x = 87,552,972.91
  5. Step 5: Solve for x
    x = 87,552,972.91/13,281.94
  6. Step 6: Final answer
    x = 6,591.88

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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.