Home / 19,688.64-27,167.04-11,305.68

Finding the Fourth Proportional to 19,688.64, 27,167.04 and 11,305.68

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Solution

The fourth proportional to 19,688.64, 27,167.04 and 11,305.68 is: 15,599.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.64 : 27,167.04 = 11,305.68 : x
  2. Step 2: Convert to fraction form
    19,688.64/27,167.04 = 11,305.68/x
  3. Step 3: Cross multiply
    19,688.64x = 27,167.04 × 11,305.68
  4. Step 4: Simplify right side
    19,688.64x = 307,141,860.79
  5. Step 5: Solve for x
    x = 307,141,860.79/19,688.64
  6. Step 6: Final answer
    x = 15,599.95

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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.