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Finding the Fourth Proportional to 14,870.88, 20,521.81 and 8,246.88

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Solution

The fourth proportional to 14,870.88, 20,521.81 and 8,246.88 is: 11,380.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,870.88 : 20,521.81 = 8,246.88 : x
  2. Step 2: Convert to fraction form
    14,870.88/20,521.81 = 8,246.88/x
  3. Step 3: Cross multiply
    14,870.88x = 20,521.81 × 8,246.88
  4. Step 4: Simplify right side
    14,870.88x = 169,240,904.45
  5. Step 5: Solve for x
    x = 169,240,904.45/14,870.88
  6. Step 6: Final answer
    x = 11,380.69

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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.