Home / 13,382.05-18,465.48-7,717.01

Finding the Fourth Proportional to 13,382.05, 18,465.48 and 7,717.01

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Solution

The fourth proportional to 13,382.05, 18,465.48 and 7,717.01 is: 10,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.05 : 18,465.48 = 7,717.01 : x
  2. Step 2: Convert to fraction form
    13,382.05/18,465.48 = 7,717.01/x
  3. Step 3: Cross multiply
    13,382.05x = 18,465.48 × 7,717.01
  4. Step 4: Simplify right side
    13,382.05x = 142,498,293.81
  5. Step 5: Solve for x
    x = 142,498,293.81/13,382.05
  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.