Home / 12,957.77-19,436.96-4,638.36

Finding the Fourth Proportional to 12,957.77, 19,436.96 and 4,638.36

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Solution

The fourth proportional to 12,957.77, 19,436.96 and 4,638.36 is: 6,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.77 : 19,436.96 = 4,638.36 : x
  2. Step 2: Convert to fraction form
    12,957.77/19,436.96 = 4,638.36/x
  3. Step 3: Cross multiply
    12,957.77x = 19,436.96 × 4,638.36
  4. Step 4: Simplify right side
    12,957.77x = 90,155,611.99
  5. Step 5: Solve for x
    x = 90,155,611.99/12,957.77
  6. Step 6: Final answer
    x = 6,957.65

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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.