Home / 7,374.88-10,171.74-5,136.76

Finding the Fourth Proportional to 7,374.88, 10,171.74 and 5,136.76

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Solution

The fourth proportional to 7,374.88, 10,171.74 and 5,136.76 is: 7,084.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.88 : 10,171.74 = 5,136.76 : x
  2. Step 2: Convert to fraction form
    7,374.88/10,171.74 = 5,136.76/x
  3. Step 3: Cross multiply
    7,374.88x = 10,171.74 × 5,136.76
  4. Step 4: Simplify right side
    7,374.88x = 52,249,787.16
  5. Step 5: Solve for x
    x = 52,249,787.16/7,374.88
  6. Step 6: Final answer
    x = 7,084.83

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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.