Home / 19,917.40-27,485.58-10,964.56

Finding the Fourth Proportional to 19,917.40, 27,485.58 and 10,964.56

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Solution

The fourth proportional to 19,917.40, 27,485.58 and 10,964.56 is: 15,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.40 : 27,485.58 = 10,964.56 : x
  2. Step 2: Convert to fraction form
    19,917.40/27,485.58 = 10,964.56/x
  3. Step 3: Cross multiply
    19,917.40x = 27,485.58 × 10,964.56
  4. Step 4: Simplify right side
    19,917.40x = 301,367,291.04
  5. Step 5: Solve for x
    x = 301,367,291.04/19,917.40
  6. Step 6: Final answer
    x = 15,130.85

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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.