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Finding the Fourth Proportional to 14,155.17, 19,533.60 and 7,867.95

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Solution

The fourth proportional to 14,155.17, 19,533.60 and 7,867.95 is: 10,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.17 : 19,533.60 = 7,867.95 : x
  2. Step 2: Convert to fraction form
    14,155.17/19,533.60 = 7,867.95/x
  3. Step 3: Cross multiply
    14,155.17x = 19,533.60 × 7,867.95
  4. Step 4: Simplify right side
    14,155.17x = 153,689,388.12
  5. Step 5: Solve for x
    x = 153,689,388.12/14,155.17
  6. Step 6: Final answer
    x = 10,857.47

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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.