Home / 19,278.66-26,604.36-10,780.68

Finding the Fourth Proportional to 19,278.66, 26,604.36 and 10,780.68

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Solution

The fourth proportional to 19,278.66, 26,604.36 and 10,780.68 is: 14,877.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.66 : 26,604.36 = 10,780.68 : x
  2. Step 2: Convert to fraction form
    19,278.66/26,604.36 = 10,780.68/x
  3. Step 3: Cross multiply
    19,278.66x = 26,604.36 × 10,780.68
  4. Step 4: Simplify right side
    19,278.66x = 286,813,101.87
  5. Step 5: Solve for x
    x = 286,813,101.87/19,278.66
  6. Step 6: Final answer
    x = 14,877.24

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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.