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Finding the Fourth Proportional to 14,355.14, 19,810.04 and 7,981.54

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Solution

The fourth proportional to 14,355.14, 19,810.04 and 7,981.54 is: 11,014.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,355.14 : 19,810.04 = 7,981.54 : x
  2. Step 2: Convert to fraction form
    14,355.14/19,810.04 = 7,981.54/x
  3. Step 3: Cross multiply
    14,355.14x = 19,810.04 × 7,981.54
  4. Step 4: Simplify right side
    14,355.14x = 158,114,537.23
  5. Step 5: Solve for x
    x = 158,114,537.23/14,355.14
  6. Step 6: Final answer
    x = 11,014.49

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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.