Home / 18,621.13-25,697.31-10,123.29

Finding the Fourth Proportional to 18,621.13, 25,697.31 and 10,123.29

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Solution

The fourth proportional to 18,621.13, 25,697.31 and 10,123.29 is: 13,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.13 : 25,697.31 = 10,123.29 : x
  2. Step 2: Convert to fraction form
    18,621.13/25,697.31 = 10,123.29/x
  3. Step 3: Cross multiply
    18,621.13x = 25,697.31 × 10,123.29
  4. Step 4: Simplify right side
    18,621.13x = 260,141,321.35
  5. Step 5: Solve for x
    x = 260,141,321.35/18,621.13
  6. Step 6: Final answer
    x = 13,970.22

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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.