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Finding the Fourth Proportional to 14,915.62, 22,462.22 and 12,991.06

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Solution

The fourth proportional to 14,915.62, 22,462.22 and 12,991.06 is: 19,563.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,915.62 : 22,462.22 = 12,991.06 : x
  2. Step 2: Convert to fraction form
    14,915.62/22,462.22 = 12,991.06/x
  3. Step 3: Cross multiply
    14,915.62x = 22,462.22 × 12,991.06
  4. Step 4: Simplify right side
    14,915.62x = 291,808,047.75
  5. Step 5: Solve for x
    x = 291,808,047.75/14,915.62
  6. Step 6: Final answer
    x = 19,563.92

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.