Home / 13,684.32-18,883.23-7,717.47

Finding the Fourth Proportional to 13,684.32, 18,883.23 and 7,717.47

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Solution

The fourth proportional to 13,684.32, 18,883.23 and 7,717.47 is: 10,649.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.32 : 18,883.23 = 7,717.47 : x
  2. Step 2: Convert to fraction form
    13,684.32/18,883.23 = 7,717.47/x
  3. Step 3: Cross multiply
    13,684.32x = 18,883.23 × 7,717.47
  4. Step 4: Simplify right side
    13,684.32x = 145,730,761.03
  5. Step 5: Solve for x
    x = 145,730,761.03/13,684.32
  6. Step 6: Final answer
    x = 10,649.47

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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.