Home / 11,059.20-15,244.80-9,574.40

Finding the Fourth Proportional to 11,059.20, 15,244.80 and 9,574.40

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Solution

The fourth proportional to 11,059.20, 15,244.80 and 9,574.40 is: 13,198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,059.20 : 15,244.80 = 9,574.40 : x
  2. Step 2: Convert to fraction form
    11,059.20/15,244.80 = 9,574.40/x
  3. Step 3: Cross multiply
    11,059.20x = 15,244.80 × 9,574.40
  4. Step 4: Simplify right side
    11,059.20x = 145,959,813.12
  5. Step 5: Solve for x
    x = 145,959,813.12/11,059.20
  6. Step 6: Final answer
    x = 13,198.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.