Home / 13,449.70-18,559.15-7,480.41

Finding the Fourth Proportional to 13,449.70, 18,559.15 and 7,480.41

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Solution

The fourth proportional to 13,449.70, 18,559.15 and 7,480.41 is: 10,322.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.70 : 18,559.15 = 7,480.41 : x
  2. Step 2: Convert to fraction form
    13,449.70/18,559.15 = 7,480.41/x
  3. Step 3: Cross multiply
    13,449.70x = 18,559.15 × 7,480.41
  4. Step 4: Simplify right side
    13,449.70x = 138,830,051.25
  5. Step 5: Solve for x
    x = 138,830,051.25/13,449.70
  6. Step 6: Final answer
    x = 10,322.17

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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.