Home / 15,906.28-21,952.68-9,618.64

Finding the Fourth Proportional to 15,906.28, 21,952.68 and 9,618.64

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Solution

The fourth proportional to 15,906.28, 21,952.68 and 9,618.64 is: 13,274.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,906.28 : 21,952.68 = 9,618.64 : x
  2. Step 2: Convert to fraction form
    15,906.28/21,952.68 = 9,618.64/x
  3. Step 3: Cross multiply
    15,906.28x = 21,952.68 × 9,618.64
  4. Step 4: Simplify right side
    15,906.28x = 211,154,925.96
  5. Step 5: Solve for x
    x = 211,154,925.96/15,906.28
  6. Step 6: Final answer
    x = 13,274.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.