Home / 19,639.50-27,102.51-11,260.86

Finding the Fourth Proportional to 19,639.50, 27,102.51 and 11,260.86

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Solution

The fourth proportional to 19,639.50, 27,102.51 and 11,260.86 is: 15,539.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.50 : 27,102.51 = 11,260.86 : x
  2. Step 2: Convert to fraction form
    19,639.50/27,102.51 = 11,260.86/x
  3. Step 3: Cross multiply
    19,639.50x = 27,102.51 × 11,260.86
  4. Step 4: Simplify right side
    19,639.50x = 305,197,570.76
  5. Step 5: Solve for x
    x = 305,197,570.76/19,639.50
  6. Step 6: Final answer
    x = 15,539.99

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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.