Home / 13,234.13-18,264.71-7,645.13

Finding the Fourth Proportional to 13,234.13, 18,264.71 and 7,645.13

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Solution

The fourth proportional to 13,234.13, 18,264.71 and 7,645.13 is: 10,551.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,234.13 : 18,264.71 = 7,645.13 : x
  2. Step 2: Convert to fraction form
    13,234.13/18,264.71 = 7,645.13/x
  3. Step 3: Cross multiply
    13,234.13x = 18,264.71 × 7,645.13
  4. Step 4: Simplify right side
    13,234.13x = 139,636,010.15
  5. Step 5: Solve for x
    x = 139,636,010.15/13,234.13
  6. Step 6: Final answer
    x = 10,551.21

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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.