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Finding the Fourth Proportional to 15,007.40, 22,511.10 and 12,091.40

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Solution

The fourth proportional to 15,007.40, 22,511.10 and 12,091.40 is: 18,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.40 : 22,511.10 = 12,091.40 : x
  2. Step 2: Convert to fraction form
    15,007.40/22,511.10 = 12,091.40/x
  3. Step 3: Cross multiply
    15,007.40x = 22,511.10 × 12,091.40
  4. Step 4: Simplify right side
    15,007.40x = 272,190,714.54
  5. Step 5: Solve for x
    x = 272,190,714.54/15,007.40
  6. Step 6: Final answer
    x = 18,137.10

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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.