Home / 18,969.24-28,473.90-10,656.36

Finding the Fourth Proportional to 18,969.24, 28,473.90 and 10,656.36

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Solution

The fourth proportional to 18,969.24, 28,473.90 and 10,656.36 is: 15,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969.24 : 28,473.90 = 10,656.36 : x
  2. Step 2: Convert to fraction form
    18,969.24/28,473.90 = 10,656.36/x
  3. Step 3: Cross multiply
    18,969.24x = 28,473.90 × 10,656.36
  4. Step 4: Simplify right side
    18,969.24x = 303,428,129.00
  5. Step 5: Solve for x
    x = 303,428,129.00/18,969.24
  6. Step 6: Final answer
    x = 15,995.80

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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.