Home / 12,957.94-19,438.72-6,384.18

Finding the Fourth Proportional to 12,957.94, 19,438.72 and 6,384.18

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Solution

The fourth proportional to 12,957.94, 19,438.72 and 6,384.18 is: 9,577.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.94 : 19,438.72 = 6,384.18 : x
  2. Step 2: Convert to fraction form
    12,957.94/19,438.72 = 6,384.18/x
  3. Step 3: Cross multiply
    12,957.94x = 19,438.72 × 6,384.18
  4. Step 4: Simplify right side
    12,957.94x = 124,100,287.45
  5. Step 5: Solve for x
    x = 124,100,287.45/12,957.94
  6. Step 6: Final answer
    x = 9,577.16

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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.