Home / 12,737.84-19,108.86-3,970.98

Finding the Fourth Proportional to 12,737.84, 19,108.86 and 3,970.98

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Solution

The fourth proportional to 12,737.84, 19,108.86 and 3,970.98 is: 5,957.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,737.84 : 19,108.86 = 3,970.98 : x
  2. Step 2: Convert to fraction form
    12,737.84/19,108.86 = 3,970.98/x
  3. Step 3: Cross multiply
    12,737.84x = 19,108.86 × 3,970.98
  4. Step 4: Simplify right side
    12,737.84x = 75,880,900.88
  5. Step 5: Solve for x
    x = 75,880,900.88/12,737.84
  6. Step 6: Final answer
    x = 5,957.12

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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.