Home / 18,253.82-25,190.30-9,870.32

Finding the Fourth Proportional to 18,253.82, 25,190.30 and 9,870.32

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Solution

The fourth proportional to 18,253.82, 25,190.30 and 9,870.32 is: 13,621.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.82 : 25,190.30 = 9,870.32 : x
  2. Step 2: Convert to fraction form
    18,253.82/25,190.30 = 9,870.32/x
  3. Step 3: Cross multiply
    18,253.82x = 25,190.30 × 9,870.32
  4. Step 4: Simplify right side
    18,253.82x = 248,636,409.55
  5. Step 5: Solve for x
    x = 248,636,409.55/18,253.82
  6. Step 6: Final answer
    x = 13,621.06

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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.