Home / 18,199.89-25,116.08-10,242.05

Finding the Fourth Proportional to 18,199.89, 25,116.08 and 10,242.05

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Solution

The fourth proportional to 18,199.89, 25,116.08 and 10,242.05 is: 14,134.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,199.89 : 25,116.08 = 10,242.05 : x
  2. Step 2: Convert to fraction form
    18,199.89/25,116.08 = 10,242.05/x
  3. Step 3: Cross multiply
    18,199.89x = 25,116.08 × 10,242.05
  4. Step 4: Simplify right side
    18,199.89x = 257,239,970.37
  5. Step 5: Solve for x
    x = 257,239,970.37/18,199.89
  6. Step 6: Final answer
    x = 14,134.15

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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.