Home / 13,382.06-18,465.48-7,717.02

Finding the Fourth Proportional to 13,382.06, 18,465.48 and 7,717.02

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Solution

The fourth proportional to 13,382.06, 18,465.48 and 7,717.02 is: 10,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.06 : 18,465.48 = 7,717.02 : x
  2. Step 2: Convert to fraction form
    13,382.06/18,465.48 = 7,717.02/x
  3. Step 3: Cross multiply
    13,382.06x = 18,465.48 × 7,717.02
  4. Step 4: Simplify right side
    13,382.06x = 142,498,478.47
  5. Step 5: Solve for x
    x = 142,498,478.47/13,382.06
  6. Step 6: Final answer
    x = 10,648.47

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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.