Home / 18,271.62-25,219.71-10,318.50

Finding the Fourth Proportional to 18,271.62, 25,219.71 and 10,318.50

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Solution

The fourth proportional to 18,271.62, 25,219.71 and 10,318.50 is: 14,242.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.62 : 25,219.71 = 10,318.50 : x
  2. Step 2: Convert to fraction form
    18,271.62/25,219.71 = 10,318.50/x
  3. Step 3: Cross multiply
    18,271.62x = 25,219.71 × 10,318.50
  4. Step 4: Simplify right side
    18,271.62x = 260,229,577.64
  5. Step 5: Solve for x
    x = 260,229,577.64/18,271.62
  6. Step 6: Final answer
    x = 14,242.28

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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.