Home / 13,663.07-18,854.76-7,694.61

Finding the Fourth Proportional to 13,663.07, 18,854.76 and 7,694.61

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Solution

The fourth proportional to 13,663.07, 18,854.76 and 7,694.61 is: 10,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.07 : 18,854.76 = 7,694.61 : x
  2. Step 2: Convert to fraction form
    13,663.07/18,854.76 = 7,694.61/x
  3. Step 3: Cross multiply
    13,663.07x = 18,854.76 × 7,694.61
  4. Step 4: Simplify right side
    13,663.07x = 145,080,024.84
  5. Step 5: Solve for x
    x = 145,080,024.84/13,663.07
  6. Step 6: Final answer
    x = 10,618.41

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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.