Home / 18,977.77-26,189.52-10,479.88

Finding the Fourth Proportional to 18,977.77, 26,189.52 and 10,479.88

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Solution

The fourth proportional to 18,977.77, 26,189.52 and 10,479.88 is: 14,462.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.77 : 26,189.52 = 10,479.88 : x
  2. Step 2: Convert to fraction form
    18,977.77/26,189.52 = 10,479.88/x
  3. Step 3: Cross multiply
    18,977.77x = 26,189.52 × 10,479.88
  4. Step 4: Simplify right side
    18,977.77x = 274,462,961.38
  5. Step 5: Solve for x
    x = 274,462,961.38/18,977.77
  6. Step 6: Final answer
    x = 14,462.34

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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.