Home / 19,238.72-28,838.63-8,148.20

Finding the Fourth Proportional to 19,238.72, 28,838.63 and 8,148.20

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Solution

The fourth proportional to 19,238.72, 28,838.63 and 8,148.20 is: 12,214.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.72 : 28,838.63 = 8,148.20 : x
  2. Step 2: Convert to fraction form
    19,238.72/28,838.63 = 8,148.20/x
  3. Step 3: Cross multiply
    19,238.72x = 28,838.63 × 8,148.20
  4. Step 4: Simplify right side
    19,238.72x = 234,982,801.14
  5. Step 5: Solve for x
    x = 234,982,801.14/19,238.72
  6. Step 6: Final answer
    x = 12,214.06

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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.