Home / 12,955.18-17,881.14-7,580.12

Finding the Fourth Proportional to 12,955.18, 17,881.14 and 7,580.12

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Solution

The fourth proportional to 12,955.18, 17,881.14 and 7,580.12 is: 10,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.18 : 17,881.14 = 7,580.12 : x
  2. Step 2: Convert to fraction form
    12,955.18/17,881.14 = 7,580.12/x
  3. Step 3: Cross multiply
    12,955.18x = 17,881.14 × 7,580.12
  4. Step 4: Simplify right side
    12,955.18x = 135,541,149.04
  5. Step 5: Solve for x
    x = 135,541,149.04/12,955.18
  6. Step 6: Final answer
    x = 10,462.31

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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.