Home / 15,656.34-21,606.64-9,286.71

Finding the Fourth Proportional to 15,656.34, 21,606.64 and 9,286.71

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Solution

The fourth proportional to 15,656.34, 21,606.64 and 9,286.71 is: 12,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.34 : 21,606.64 = 9,286.71 : x
  2. Step 2: Convert to fraction form
    15,656.34/21,606.64 = 9,286.71/x
  3. Step 3: Cross multiply
    15,656.34x = 21,606.64 × 9,286.71
  4. Step 4: Simplify right side
    15,656.34x = 200,654,599.75
  5. Step 5: Solve for x
    x = 200,654,599.75/15,656.34
  6. Step 6: Final answer
    x = 12,816.19

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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.