Home / 13,560.30-20,300.85-9,672.30

Finding the Fourth Proportional to 13,560.30, 20,300.85 and 9,672.30

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Solution

The fourth proportional to 13,560.30, 20,300.85 and 9,672.30 is: 14,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.30 : 20,300.85 = 9,672.30 : x
  2. Step 2: Convert to fraction form
    13,560.30/20,300.85 = 9,672.30/x
  3. Step 3: Cross multiply
    13,560.30x = 20,300.85 × 9,672.30
  4. Step 4: Simplify right side
    13,560.30x = 196,355,911.46
  5. Step 5: Solve for x
    x = 196,355,911.46/13,560.30
  6. Step 6: Final answer
    x = 14,480.20

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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.