Home / 12,957.12-19,434.24-4,636.80

Finding the Fourth Proportional to 12,957.12, 19,434.24 and 4,636.80

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Solution

The fourth proportional to 12,957.12, 19,434.24 and 4,636.80 is: 6,954.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.12 : 19,434.24 = 4,636.80 : x
  2. Step 2: Convert to fraction form
    12,957.12/19,434.24 = 4,636.80/x
  3. Step 3: Cross multiply
    12,957.12x = 19,434.24 × 4,636.80
  4. Step 4: Simplify right side
    12,957.12x = 90,112,684.03
  5. Step 5: Solve for x
    x = 90,112,684.03/12,957.12
  6. Step 6: Final answer
    x = 6,954.68

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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.