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Finding the Fourth Proportional to 14,250.42, 19,666.08 and 7,877.28

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Solution

The fourth proportional to 14,250.42, 19,666.08 and 7,877.28 is: 10,870.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,250.42 : 19,666.08 = 7,877.28 : x
  2. Step 2: Convert to fraction form
    14,250.42/19,666.08 = 7,877.28/x
  3. Step 3: Cross multiply
    14,250.42x = 19,666.08 × 7,877.28
  4. Step 4: Simplify right side
    14,250.42x = 154,915,218.66
  5. Step 5: Solve for x
    x = 154,915,218.66/14,250.42
  6. Step 6: Final answer
    x = 10,870.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.