Home / 19,278.30-26,604.09-10,780.74

Finding the Fourth Proportional to 19,278.30, 26,604.09 and 10,780.74

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Solution

The fourth proportional to 19,278.30, 26,604.09 and 10,780.74 is: 14,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.30 : 26,604.09 = 10,780.74 : x
  2. Step 2: Convert to fraction form
    19,278.30/26,604.09 = 10,780.74/x
  3. Step 3: Cross multiply
    19,278.30x = 26,604.09 × 10,780.74
  4. Step 4: Simplify right side
    19,278.30x = 286,811,777.23
  5. Step 5: Solve for x
    x = 286,811,777.23/19,278.30
  6. Step 6: Final answer
    x = 14,877.44

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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.