Home / 13,253.75-18,270.90-9,262.47

Finding the Fourth Proportional to 13,253.75, 18,270.90 and 9,262.47

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Solution

The fourth proportional to 13,253.75, 18,270.90 and 9,262.47 is: 12,768.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.75 : 18,270.90 = 9,262.47 : x
  2. Step 2: Convert to fraction form
    13,253.75/18,270.90 = 9,262.47/x
  3. Step 3: Cross multiply
    13,253.75x = 18,270.90 × 9,262.47
  4. Step 4: Simplify right side
    13,253.75x = 169,233,663.12
  5. Step 5: Solve for x
    x = 169,233,663.12/13,253.75
  6. Step 6: Final answer
    x = 12,768.74

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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.