Home / 18,364.72-25,343.60-9,981.24

Finding the Fourth Proportional to 18,364.72, 25,343.60 and 9,981.24

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Solution

The fourth proportional to 18,364.72, 25,343.60 and 9,981.24 is: 13,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.72 : 25,343.60 = 9,981.24 : x
  2. Step 2: Convert to fraction form
    18,364.72/25,343.60 = 9,981.24/x
  3. Step 3: Cross multiply
    18,364.72x = 25,343.60 × 9,981.24
  4. Step 4: Simplify right side
    18,364.72x = 252,960,554.06
  5. Step 5: Solve for x
    x = 252,960,554.06/18,364.72
  6. Step 6: Final answer
    x = 13,774.27

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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.