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Finding the Fourth Proportional to 14,759.79, 20,368.14 and 8,045.43

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Solution

The fourth proportional to 14,759.79, 20,368.14 and 8,045.43 is: 11,102.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,759.79 : 20,368.14 = 8,045.43 : x
  2. Step 2: Convert to fraction form
    14,759.79/20,368.14 = 8,045.43/x
  3. Step 3: Cross multiply
    14,759.79x = 20,368.14 × 8,045.43
  4. Step 4: Simplify right side
    14,759.79x = 163,870,444.60
  5. Step 5: Solve for x
    x = 163,870,444.60/14,759.79
  6. Step 6: Final answer
    x = 11,102.49

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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.