Home / 36,686.45-55,005.98-11,718.20

Finding the Fourth Proportional to 36,686.45, 55,005.98 and 11,718.20

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Solution

The fourth proportional to 36,686.45, 55,005.98 and 11,718.20 is: 17,569.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,686.45 : 55,005.98 = 11,718.20 : x
  2. Step 2: Convert to fraction form
    36,686.45/55,005.98 = 11,718.20/x
  3. Step 3: Cross multiply
    36,686.45x = 55,005.98 × 11,718.20
  4. Step 4: Simplify right side
    36,686.45x = 644,570,947.49
  5. Step 5: Solve for x
    x = 644,570,947.49/36,686.45
  6. Step 6: Final answer
    x = 17,569.73

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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.