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Finding the Fourth Proportional to 15,007.88, 22,511.01 and 7,612.15

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Solution

The fourth proportional to 15,007.88, 22,511.01 and 7,612.15 is: 11,417.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.88 : 22,511.01 = 7,612.15 : x
  2. Step 2: Convert to fraction form
    15,007.88/22,511.01 = 7,612.15/x
  3. Step 3: Cross multiply
    15,007.88x = 22,511.01 × 7,612.15
  4. Step 4: Simplify right side
    15,007.88x = 171,357,114.22
  5. Step 5: Solve for x
    x = 171,357,114.22/15,007.88
  6. Step 6: Final answer
    x = 11,417.81

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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.