Home / 19,150.20-28,725.30-12,497.40

Finding the Fourth Proportional to 19,150.20, 28,725.30 and 12,497.40

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Solution

The fourth proportional to 19,150.20, 28,725.30 and 12,497.40 is: 18,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.20 : 28,725.30 = 12,497.40 : x
  2. Step 2: Convert to fraction form
    19,150.20/28,725.30 = 12,497.40/x
  3. Step 3: Cross multiply
    19,150.20x = 28,725.30 × 12,497.40
  4. Step 4: Simplify right side
    19,150.20x = 358,991,564.22
  5. Step 5: Solve for x
    x = 358,991,564.22/19,150.20
  6. Step 6: Final answer
    x = 18,746.10

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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.