Home / 13,961.12-19,271.40-9,775.04

Finding the Fourth Proportional to 13,961.12, 19,271.40 and 9,775.04

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Solution

The fourth proportional to 13,961.12, 19,271.40 and 9,775.04 is: 13,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.12 : 19,271.40 = 9,775.04 : x
  2. Step 2: Convert to fraction form
    13,961.12/19,271.40 = 9,775.04/x
  3. Step 3: Cross multiply
    13,961.12x = 19,271.40 × 9,775.04
  4. Step 4: Simplify right side
    13,961.12x = 188,378,705.86
  5. Step 5: Solve for x
    x = 188,378,705.86/13,961.12
  6. Step 6: Final answer
    x = 13,493.09

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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.