Home / 13,448.49-18,558.77-7,480.68

Finding the Fourth Proportional to 13,448.49, 18,558.77 and 7,480.68

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Solution

The fourth proportional to 13,448.49, 18,558.77 and 7,480.68 is: 10,323.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.49 : 18,558.77 = 7,480.68 : x
  2. Step 2: Convert to fraction form
    13,448.49/18,558.77 = 7,480.68/x
  3. Step 3: Cross multiply
    13,448.49x = 18,558.77 × 7,480.68
  4. Step 4: Simplify right side
    13,448.49x = 138,832,182.16
  5. Step 5: Solve for x
    x = 138,832,182.16/13,448.49
  6. Step 6: Final answer
    x = 10,323.25

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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.