Home / 11,772.08-17,631.24-5,620.40

Finding the Fourth Proportional to 11,772.08, 17,631.24 and 5,620.40

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Solution

The fourth proportional to 11,772.08, 17,631.24 and 5,620.40 is: 8,417.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.08 : 17,631.24 = 5,620.40 : x
  2. Step 2: Convert to fraction form
    11,772.08/17,631.24 = 5,620.40/x
  3. Step 3: Cross multiply
    11,772.08x = 17,631.24 × 5,620.40
  4. Step 4: Simplify right side
    11,772.08x = 99,094,621.30
  5. Step 5: Solve for x
    x = 99,094,621.30/11,772.08
  6. Step 6: Final answer
    x = 8,417.77

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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.