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Finding the Fourth Proportional to 14,403.76, 19,877.36 and 8,814.76

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Solution

The fourth proportional to 14,403.76, 19,877.36 and 8,814.76 is: 12,164.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.76 : 19,877.36 = 8,814.76 : x
  2. Step 2: Convert to fraction form
    14,403.76/19,877.36 = 8,814.76/x
  3. Step 3: Cross multiply
    14,403.76x = 19,877.36 × 8,814.76
  4. Step 4: Simplify right side
    14,403.76x = 175,214,157.83
  5. Step 5: Solve for x
    x = 175,214,157.83/14,403.76
  6. Step 6: Final answer
    x = 12,164.47

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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.