Home / 18,122.30-25,005.20-10,569.86

Finding the Fourth Proportional to 18,122.30, 25,005.20 and 10,569.86

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Solution

The fourth proportional to 18,122.30, 25,005.20 and 10,569.86 is: 14,584.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.30 : 25,005.20 = 10,569.86 : x
  2. Step 2: Convert to fraction form
    18,122.30/25,005.20 = 10,569.86/x
  3. Step 3: Cross multiply
    18,122.30x = 25,005.20 × 10,569.86
  4. Step 4: Simplify right side
    18,122.30x = 264,301,285.40
  5. Step 5: Solve for x
    x = 264,301,285.40/18,122.30
  6. Step 6: Final answer
    x = 14,584.32

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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.