Home / 12,975.23-17,887.15-9,242.75

Finding the Fourth Proportional to 12,975.23, 17,887.15 and 9,242.75

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Solution

The fourth proportional to 12,975.23, 17,887.15 and 9,242.75 is: 12,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.23 : 17,887.15 = 9,242.75 : x
  2. Step 2: Convert to fraction form
    12,975.23/17,887.15 = 9,242.75/x
  3. Step 3: Cross multiply
    12,975.23x = 17,887.15 × 9,242.75
  4. Step 4: Simplify right side
    12,975.23x = 165,326,455.66
  5. Step 5: Solve for x
    x = 165,326,455.66/12,975.23
  6. Step 6: Final answer
    x = 12,741.70

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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.