Home / 12,962.16-19,440.36-5,168.88

Finding the Fourth Proportional to 12,962.16, 19,440.36 and 5,168.88

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Solution

The fourth proportional to 12,962.16, 19,440.36 and 5,168.88 is: 7,752.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962.16 : 19,440.36 = 5,168.88 : x
  2. Step 2: Convert to fraction form
    12,962.16/19,440.36 = 5,168.88/x
  3. Step 3: Cross multiply
    12,962.16x = 19,440.36 × 5,168.88
  4. Step 4: Simplify right side
    12,962.16x = 100,484,888.00
  5. Step 5: Solve for x
    x = 100,484,888.00/12,962.16
  6. Step 6: Final answer
    x = 7,752.17

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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.