Home / 18,690.45-25,792.49-10,192.64

Finding the Fourth Proportional to 18,690.45, 25,792.49 and 10,192.64

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Solution

The fourth proportional to 18,690.45, 25,792.49 and 10,192.64 is: 14,065.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.45 : 25,792.49 = 10,192.64 : x
  2. Step 2: Convert to fraction form
    18,690.45/25,792.49 = 10,192.64/x
  3. Step 3: Cross multiply
    18,690.45x = 25,792.49 × 10,192.64
  4. Step 4: Simplify right side
    18,690.45x = 262,893,461.79
  5. Step 5: Solve for x
    x = 262,893,461.79/18,690.45
  6. Step 6: Final answer
    x = 14,065.66

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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.