Home / 12,975.90-19,463.87-3,615.95

Finding the Fourth Proportional to 12,975.90, 19,463.87 and 3,615.95

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Solution

The fourth proportional to 12,975.90, 19,463.87 and 3,615.95 is: 5,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.90 : 19,463.87 = 3,615.95 : x
  2. Step 2: Convert to fraction form
    12,975.90/19,463.87 = 3,615.95/x
  3. Step 3: Cross multiply
    12,975.90x = 19,463.87 × 3,615.95
  4. Step 4: Simplify right side
    12,975.90x = 70,380,347.36
  5. Step 5: Solve for x
    x = 70,380,347.36/12,975.90
  6. Step 6: Final answer
    x = 5,423.93

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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.