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Finding the Fourth Proportional to 15,005.63, 22,515.04 and 7,983.99

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Solution

The fourth proportional to 15,005.63, 22,515.04 and 7,983.99 is: 11,979.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005.63 : 22,515.04 = 7,983.99 : x
  2. Step 2: Convert to fraction form
    15,005.63/22,515.04 = 7,983.99/x
  3. Step 3: Cross multiply
    15,005.63x = 22,515.04 × 7,983.99
  4. Step 4: Simplify right side
    15,005.63x = 179,759,854.21
  5. Step 5: Solve for x
    x = 179,759,854.21/15,005.63
  6. Step 6: Final answer
    x = 11,979.49

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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.