Home / 19,008.30-28,512.18-9,145.20

Finding the Fourth Proportional to 19,008.30, 28,512.18 and 9,145.20

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Solution

The fourth proportional to 19,008.30, 28,512.18 and 9,145.20 is: 13,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.30 : 28,512.18 = 9,145.20 : x
  2. Step 2: Convert to fraction form
    19,008.30/28,512.18 = 9,145.20/x
  3. Step 3: Cross multiply
    19,008.30x = 28,512.18 × 9,145.20
  4. Step 4: Simplify right side
    19,008.30x = 260,749,588.54
  5. Step 5: Solve for x
    x = 260,749,588.54/19,008.30
  6. Step 6: Final answer
    x = 13,717.67

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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.