Home / 21,463.85-29,626.28-12,964.62

Finding the Fourth Proportional to 21,463.85, 29,626.28 and 12,964.62

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Solution

The fourth proportional to 21,463.85, 29,626.28 and 12,964.62 is: 17,894.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.85 : 29,626.28 = 12,964.62 : x
  2. Step 2: Convert to fraction form
    21,463.85/29,626.28 = 12,964.62/x
  3. Step 3: Cross multiply
    21,463.85x = 29,626.28 × 12,964.62
  4. Step 4: Simplify right side
    21,463.85x = 384,093,462.21
  5. Step 5: Solve for x
    x = 384,093,462.21/21,463.85
  6. Step 6: Final answer
    x = 17,894.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.