Home / 13,448.73-18,559.35-7,480.47

Finding the Fourth Proportional to 13,448.73, 18,559.35 and 7,480.47

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Solution

The fourth proportional to 13,448.73, 18,559.35 and 7,480.47 is: 10,323.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.73 : 18,559.35 = 7,480.47 : x
  2. Step 2: Convert to fraction form
    13,448.73/18,559.35 = 7,480.47/x
  3. Step 3: Cross multiply
    13,448.73x = 18,559.35 × 7,480.47
  4. Step 4: Simplify right side
    13,448.73x = 138,832,660.89
  5. Step 5: Solve for x
    x = 138,832,660.89/13,448.73
  6. Step 6: Final answer
    x = 10,323.11

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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.