Home / 13,454.80-20,182.20-10,535.60

Finding the Fourth Proportional to 13,454.80, 20,182.20 and 10,535.60

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Solution

The fourth proportional to 13,454.80, 20,182.20 and 10,535.60 is: 15,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.80 : 20,182.20 = 10,535.60 : x
  2. Step 2: Convert to fraction form
    13,454.80/20,182.20 = 10,535.60/x
  3. Step 3: Cross multiply
    13,454.80x = 20,182.20 × 10,535.60
  4. Step 4: Simplify right side
    13,454.80x = 212,631,586.32
  5. Step 5: Solve for x
    x = 212,631,586.32/13,454.80
  6. Step 6: Final answer
    x = 15,803.40

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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.