Home / 18,117.24-25,015.98-11,746.86

Finding the Fourth Proportional to 18,117.24, 25,015.98 and 11,746.86

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Solution

The fourth proportional to 18,117.24, 25,015.98 and 11,746.86 is: 16,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.24 : 25,015.98 = 11,746.86 : x
  2. Step 2: Convert to fraction form
    18,117.24/25,015.98 = 11,746.86/x
  3. Step 3: Cross multiply
    18,117.24x = 25,015.98 × 11,746.86
  4. Step 4: Simplify right side
    18,117.24x = 293,859,214.82
  5. Step 5: Solve for x
    x = 293,859,214.82/18,117.24
  6. Step 6: Final answer
    x = 16,219.87

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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.