Home / 13,074.28-18,041.07-7,408.60

Finding the Fourth Proportional to 13,074.28, 18,041.07 and 7,408.60

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Solution

The fourth proportional to 13,074.28, 18,041.07 and 7,408.60 is: 10,223.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.28 : 18,041.07 = 7,408.60 : x
  2. Step 2: Convert to fraction form
    13,074.28/18,041.07 = 7,408.60/x
  3. Step 3: Cross multiply
    13,074.28x = 18,041.07 × 7,408.60
  4. Step 4: Simplify right side
    13,074.28x = 133,659,071.20
  5. Step 5: Solve for x
    x = 133,659,071.20/13,074.28
  6. Step 6: Final answer
    x = 10,223.05

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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.