Home / 13,448.33-18,558.52-7,479.95

Finding the Fourth Proportional to 13,448.33, 18,558.52 and 7,479.95

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Solution

The fourth proportional to 13,448.33, 18,558.52 and 7,479.95 is: 10,322.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.33 : 18,558.52 = 7,479.95 : x
  2. Step 2: Convert to fraction form
    13,448.33/18,558.52 = 7,479.95/x
  3. Step 3: Cross multiply
    13,448.33x = 18,558.52 × 7,479.95
  4. Step 4: Simplify right side
    13,448.33x = 138,816,690.18
  5. Step 5: Solve for x
    x = 138,816,690.18/13,448.33
  6. Step 6: Final answer
    x = 10,322.23

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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.