Home / 14,699.75-20,285.21-7,985.13

Finding the Fourth Proportional to 14,699.75, 20,285.21 and 7,985.13

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Solution

The fourth proportional to 14,699.75, 20,285.21 and 7,985.13 is: 11,019.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,699.75 : 20,285.21 = 7,985.13 : x
  2. Step 2: Convert to fraction form
    14,699.75/20,285.21 = 7,985.13/x
  3. Step 3: Cross multiply
    14,699.75x = 20,285.21 × 7,985.13
  4. Step 4: Simplify right side
    14,699.75x = 161,979,999.00
  5. Step 5: Solve for x
    x = 161,979,999.00/14,699.75
  6. Step 6: Final answer
    x = 11,019.24

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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.