Home / 11,972.00-17,964.08-4,957.20

Finding the Fourth Proportional to 11,972.00, 17,964.08 and 4,957.20

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Solution

The fourth proportional to 11,972.00, 17,964.08 and 4,957.20 is: 7,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.00 : 17,964.08 = 4,957.20 : x
  2. Step 2: Convert to fraction form
    11,972.00/17,964.08 = 4,957.20/x
  3. Step 3: Cross multiply
    11,972.00x = 17,964.08 × 4,957.20
  4. Step 4: Simplify right side
    11,972.00x = 89,051,531.18
  5. Step 5: Solve for x
    x = 89,051,531.18/11,972.00
  6. Step 6: Final answer
    x = 7,438.32

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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.