Home / 13,549.72-20,325.22-4,785.56

Finding the Fourth Proportional to 13,549.72, 20,325.22 and 4,785.56

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Solution

The fourth proportional to 13,549.72, 20,325.22 and 4,785.56 is: 7,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.72 : 20,325.22 = 4,785.56 : x
  2. Step 2: Convert to fraction form
    13,549.72/20,325.22 = 4,785.56/x
  3. Step 3: Cross multiply
    13,549.72x = 20,325.22 × 4,785.56
  4. Step 4: Simplify right side
    13,549.72x = 97,267,559.82
  5. Step 5: Solve for x
    x = 97,267,559.82/13,549.72
  6. Step 6: Final answer
    x = 7,178.57

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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.