Home / 18,688.58-25,790.04-10,190.68

Finding the Fourth Proportional to 18,688.58, 25,790.04 and 10,190.68

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Solution

The fourth proportional to 18,688.58, 25,790.04 and 10,190.68 is: 14,063.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.58 : 25,790.04 = 10,190.68 : x
  2. Step 2: Convert to fraction form
    18,688.58/25,790.04 = 10,190.68/x
  3. Step 3: Cross multiply
    18,688.58x = 25,790.04 × 10,190.68
  4. Step 4: Simplify right side
    18,688.58x = 262,817,980.35
  5. Step 5: Solve for x
    x = 262,817,980.35/18,688.58
  6. Step 6: Final answer
    x = 14,063.03

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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.