Home / 13,520.57-20,253.29-11,030.63

Finding the Fourth Proportional to 13,520.57, 20,253.29 and 11,030.63

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Solution

The fourth proportional to 13,520.57, 20,253.29 and 11,030.63 is: 16,523.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.57 : 20,253.29 = 11,030.63 : x
  2. Step 2: Convert to fraction form
    13,520.57/20,253.29 = 11,030.63/x
  3. Step 3: Cross multiply
    13,520.57x = 20,253.29 × 11,030.63
  4. Step 4: Simplify right side
    13,520.57x = 223,406,391.85
  5. Step 5: Solve for x
    x = 223,406,391.85/13,520.57
  6. Step 6: Final answer
    x = 16,523.45

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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.