Home / 19,499.10-26,908.38-11,434.74

Finding the Fourth Proportional to 19,499.10, 26,908.38 and 11,434.74

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Solution

The fourth proportional to 19,499.10, 26,908.38 and 11,434.74 is: 15,779.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,499.10 : 26,908.38 = 11,434.74 : x
  2. Step 2: Convert to fraction form
    19,499.10/26,908.38 = 11,434.74/x
  3. Step 3: Cross multiply
    19,499.10x = 26,908.38 × 11,434.74
  4. Step 4: Simplify right side
    19,499.10x = 307,690,329.12
  5. Step 5: Solve for x
    x = 307,690,329.12/19,499.10
  6. Step 6: Final answer
    x = 15,779.72

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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.