Home / 15,464.10-21,340.62-8,749.80

Finding the Fourth Proportional to 15,464.10, 21,340.62 and 8,749.80

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Solution

The fourth proportional to 15,464.10, 21,340.62 and 8,749.80 is: 12,074.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,464.10 : 21,340.62 = 8,749.80 : x
  2. Step 2: Convert to fraction form
    15,464.10/21,340.62 = 8,749.80/x
  3. Step 3: Cross multiply
    15,464.10x = 21,340.62 × 8,749.80
  4. Step 4: Simplify right side
    15,464.10x = 186,726,156.88
  5. Step 5: Solve for x
    x = 186,726,156.88/15,464.10
  6. Step 6: Final answer
    x = 12,074.82

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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.