Home / 18,749.28-28,133.12-11,727.52

Finding the Fourth Proportional to 18,749.28, 28,133.12 and 11,727.52

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Solution

The fourth proportional to 18,749.28, 28,133.12 and 11,727.52 is: 17,597.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.28 : 28,133.12 = 11,727.52 : x
  2. Step 2: Convert to fraction form
    18,749.28/28,133.12 = 11,727.52/x
  3. Step 3: Cross multiply
    18,749.28x = 28,133.12 × 11,727.52
  4. Step 4: Simplify right side
    18,749.28x = 329,931,727.46
  5. Step 5: Solve for x
    x = 329,931,727.46/18,749.28
  6. Step 6: Final answer
    x = 17,597.03

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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.