Home / 14,699.97-20,285.79-7,985.45

Finding the Fourth Proportional to 14,699.97, 20,285.79 and 7,985.45

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Solution

The fourth proportional to 14,699.97, 20,285.79 and 7,985.45 is: 11,019.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,699.97 : 20,285.79 = 7,985.45 : x
  2. Step 2: Convert to fraction form
    14,699.97/20,285.79 = 7,985.45/x
  3. Step 3: Cross multiply
    14,699.97x = 20,285.79 × 7,985.45
  4. Step 4: Simplify right side
    14,699.97x = 161,991,270.23
  5. Step 5: Solve for x
    x = 161,991,270.23/14,699.97
  6. Step 6: Final answer
    x = 11,019.84

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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.