Home / 12,935.61-17,850.75-7,270.25

Finding the Fourth Proportional to 12,935.61, 17,850.75 and 7,270.25

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Solution

The fourth proportional to 12,935.61, 17,850.75 and 7,270.25 is: 10,032.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.61 : 17,850.75 = 7,270.25 : x
  2. Step 2: Convert to fraction form
    12,935.61/17,850.75 = 7,270.25/x
  3. Step 3: Cross multiply
    12,935.61x = 17,850.75 × 7,270.25
  4. Step 4: Simplify right side
    12,935.61x = 129,779,325.93
  5. Step 5: Solve for x
    x = 129,779,325.93/12,935.61
  6. Step 6: Final answer
    x = 10,032.72

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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.