Home / 12,964.90-19,442.58-4,642.66

Finding the Fourth Proportional to 12,964.90, 19,442.58 and 4,642.66

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Solution

The fourth proportional to 12,964.90, 19,442.58 and 4,642.66 is: 6,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.90 : 19,442.58 = 4,642.66 : x
  2. Step 2: Convert to fraction form
    12,964.90/19,442.58 = 4,642.66/x
  3. Step 3: Cross multiply
    12,964.90x = 19,442.58 × 4,642.66
  4. Step 4: Simplify right side
    12,964.90x = 90,265,288.46
  5. Step 5: Solve for x
    x = 90,265,288.46/12,964.90
  6. Step 6: Final answer
    x = 6,962.28

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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.