Home / 18,261.62-25,200.93-9,878.18

Finding the Fourth Proportional to 18,261.62, 25,200.93 and 9,878.18

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Solution

The fourth proportional to 18,261.62, 25,200.93 and 9,878.18 is: 13,631.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.62 : 25,200.93 = 9,878.18 : x
  2. Step 2: Convert to fraction form
    18,261.62/25,200.93 = 9,878.18/x
  3. Step 3: Cross multiply
    18,261.62x = 25,200.93 × 9,878.18
  4. Step 4: Simplify right side
    18,261.62x = 248,939,322.71
  5. Step 5: Solve for x
    x = 248,939,322.71/18,261.62
  6. Step 6: Final answer
    x = 13,631.83

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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.