Home / 13,726.86-20,590.32-4,961.76

Finding the Fourth Proportional to 13,726.86, 20,590.32 and 4,961.76

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Solution

The fourth proportional to 13,726.86, 20,590.32 and 4,961.76 is: 7,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.86 : 20,590.32 = 4,961.76 : x
  2. Step 2: Convert to fraction form
    13,726.86/20,590.32 = 4,961.76/x
  3. Step 3: Cross multiply
    13,726.86x = 20,590.32 × 4,961.76
  4. Step 4: Simplify right side
    13,726.86x = 102,164,226.16
  5. Step 5: Solve for x
    x = 102,164,226.16/13,726.86
  6. Step 6: Final answer
    x = 7,442.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.