Home / 19,308.81-26,639.96-10,809.68

Finding the Fourth Proportional to 19,308.81, 26,639.96 and 10,809.68

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Solution

The fourth proportional to 19,308.81, 26,639.96 and 10,809.68 is: 14,913.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,308.81 : 26,639.96 = 10,809.68 : x
  2. Step 2: Convert to fraction form
    19,308.81/26,639.96 = 10,809.68/x
  3. Step 3: Cross multiply
    19,308.81x = 26,639.96 × 10,809.68
  4. Step 4: Simplify right side
    19,308.81x = 287,969,255.56
  5. Step 5: Solve for x
    x = 287,969,255.56/19,308.81
  6. Step 6: Final answer
    x = 14,913.88

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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.