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Finding the Fourth Proportional to 14,014.71, 19,337.88 and 9,479.42

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Solution

The fourth proportional to 14,014.71, 19,337.88 and 9,479.42 is: 13,079.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,014.71 : 19,337.88 = 9,479.42 : x
  2. Step 2: Convert to fraction form
    14,014.71/19,337.88 = 9,479.42/x
  3. Step 3: Cross multiply
    14,014.71x = 19,337.88 × 9,479.42
  4. Step 4: Simplify right side
    14,014.71x = 183,311,789.74
  5. Step 5: Solve for x
    x = 183,311,789.74/14,014.71
  6. Step 6: Final answer
    x = 13,079.96

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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.