Home / 18,354.08-25,328.72-9,970.56

Finding the Fourth Proportional to 18,354.08, 25,328.72 and 9,970.56

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Solution

The fourth proportional to 18,354.08, 25,328.72 and 9,970.56 is: 13,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.08 : 25,328.72 = 9,970.56 : x
  2. Step 2: Convert to fraction form
    18,354.08/25,328.72 = 9,970.56/x
  3. Step 3: Cross multiply
    18,354.08x = 25,328.72 × 9,970.56
  4. Step 4: Simplify right side
    18,354.08x = 252,541,522.48
  5. Step 5: Solve for x
    x = 252,541,522.48/18,354.08
  6. Step 6: Final answer
    x = 13,759.42

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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.