Home / 13,343.40-20,015.50-4,578.18

Finding the Fourth Proportional to 13,343.40, 20,015.50 and 4,578.18

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Solution

The fourth proportional to 13,343.40, 20,015.50 and 4,578.18 is: 6,867.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.40 : 20,015.50 = 4,578.18 : x
  2. Step 2: Convert to fraction form
    13,343.40/20,015.50 = 4,578.18/x
  3. Step 3: Cross multiply
    13,343.40x = 20,015.50 × 4,578.18
  4. Step 4: Simplify right side
    13,343.40x = 91,634,561.79
  5. Step 5: Solve for x
    x = 91,634,561.79/13,343.40
  6. Step 6: Final answer
    x = 6,867.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.