Home / 13,448.18-18,559.50-7,480.34

Finding the Fourth Proportional to 13,448.18, 18,559.50 and 7,480.34

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Solution

The fourth proportional to 13,448.18, 18,559.50 and 7,480.34 is: 10,323.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.18 : 18,559.50 = 7,480.34 : x
  2. Step 2: Convert to fraction form
    13,448.18/18,559.50 = 7,480.34/x
  3. Step 3: Cross multiply
    13,448.18x = 18,559.50 × 7,480.34
  4. Step 4: Simplify right side
    13,448.18x = 138,831,370.23
  5. Step 5: Solve for x
    x = 138,831,370.23/13,448.18
  6. Step 6: Final answer
    x = 10,323.43

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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.