Home / 13,433.40-20,130.30-9,743.40

Finding the Fourth Proportional to 13,433.40, 20,130.30 and 9,743.40

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Solution

The fourth proportional to 13,433.40, 20,130.30 and 9,743.40 is: 14,600.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.40 : 20,130.30 = 9,743.40 : x
  2. Step 2: Convert to fraction form
    13,433.40/20,130.30 = 9,743.40/x
  3. Step 3: Cross multiply
    13,433.40x = 20,130.30 × 9,743.40
  4. Step 4: Simplify right side
    13,433.40x = 196,137,565.02
  5. Step 5: Solve for x
    x = 196,137,565.02/13,433.40
  6. Step 6: Final answer
    x = 14,600.74

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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.