Home / 12,945.93-17,864.82-7,280.79

Finding the Fourth Proportional to 12,945.93, 17,864.82 and 7,280.79

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Solution

The fourth proportional to 12,945.93, 17,864.82 and 7,280.79 is: 10,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.93 : 17,864.82 = 7,280.79 : x
  2. Step 2: Convert to fraction form
    12,945.93/17,864.82 = 7,280.79/x
  3. Step 3: Cross multiply
    12,945.93x = 17,864.82 × 7,280.79
  4. Step 4: Simplify right side
    12,945.93x = 130,070,002.81
  5. Step 5: Solve for x
    x = 130,070,002.81/12,945.93
  6. Step 6: Final answer
    x = 10,047.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.