Home / 18,639.60-25,722.45-10,141.98

Finding the Fourth Proportional to 18,639.60, 25,722.45 and 10,141.98

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Solution

The fourth proportional to 18,639.60, 25,722.45 and 10,141.98 is: 13,995.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.60 : 25,722.45 = 10,141.98 : x
  2. Step 2: Convert to fraction form
    18,639.60/25,722.45 = 10,141.98/x
  3. Step 3: Cross multiply
    18,639.60x = 25,722.45 × 10,141.98
  4. Step 4: Simplify right side
    18,639.60x = 260,876,573.45
  5. Step 5: Solve for x
    x = 260,876,573.45/18,639.60
  6. Step 6: Final answer
    x = 13,995.82

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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.