Home / 19,505.45-29,268.30-9,117.20

Finding the Fourth Proportional to 19,505.45, 29,268.30 and 9,117.20

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Solution

The fourth proportional to 19,505.45, 29,268.30 and 9,117.20 is: 13,680.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.45 : 29,268.30 = 9,117.20 : x
  2. Step 2: Convert to fraction form
    19,505.45/29,268.30 = 9,117.20/x
  3. Step 3: Cross multiply
    19,505.45x = 29,268.30 × 9,117.20
  4. Step 4: Simplify right side
    19,505.45x = 266,844,944.76
  5. Step 5: Solve for x
    x = 266,844,944.76/19,505.45
  6. Step 6: Final answer
    x = 13,680.53

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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.