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Finding the Fourth Proportional to 14,162.64, 19,551.36 and 8,860.40

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Solution

The fourth proportional to 14,162.64, 19,551.36 and 8,860.40 is: 12,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,162.64 : 19,551.36 = 8,860.40 : x
  2. Step 2: Convert to fraction form
    14,162.64/19,551.36 = 8,860.40/x
  3. Step 3: Cross multiply
    14,162.64x = 19,551.36 × 8,860.40
  4. Step 4: Simplify right side
    14,162.64x = 173,232,870.14
  5. Step 5: Solve for x
    x = 173,232,870.14/14,162.64
  6. Step 6: Final answer
    x = 12,231.68

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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.