Home / 14,315.72-21,474.30-4,956.20

Finding the Fourth Proportional to 14,315.72, 21,474.30 and 4,956.20

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Solution

The fourth proportional to 14,315.72, 21,474.30 and 4,956.20 is: 7,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.72 : 21,474.30 = 4,956.20 : x
  2. Step 2: Convert to fraction form
    14,315.72/21,474.30 = 4,956.20/x
  3. Step 3: Cross multiply
    14,315.72x = 21,474.30 × 4,956.20
  4. Step 4: Simplify right side
    14,315.72x = 106,430,925.66
  5. Step 5: Solve for x
    x = 106,430,925.66/14,315.72
  6. Step 6: Final answer
    x = 7,434.55

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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.