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Finding the Fourth Proportional to 16,688, 25,022.28 and 7,327.64

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Solution

The fourth proportional to 16,688, 25,022.28 and 7,327.64 is: 10,987.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,688 : 25,022.28 = 7,327.64 : x
  2. Step 2: Convert to fraction form
    16,688/25,022.28 = 7,327.64/x
  3. Step 3: Cross multiply
    16,688x = 25,022.28 × 7,327.64
  4. Step 4: Simplify right side
    16,688x = 183,354,259.82
  5. Step 5: Solve for x
    x = 183,354,259.82/16,688
  6. Step 6: Final answer
    x = 10,987.19

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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.