Home / 15,552.30-21,462.21-8,840.15

Finding the Fourth Proportional to 15,552.30, 21,462.21 and 8,840.15

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Solution

The fourth proportional to 15,552.30, 21,462.21 and 8,840.15 is: 12,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552.30 : 21,462.21 = 8,840.15 : x
  2. Step 2: Convert to fraction form
    15,552.30/21,462.21 = 8,840.15/x
  3. Step 3: Cross multiply
    15,552.30x = 21,462.21 × 8,840.15
  4. Step 4: Simplify right side
    15,552.30x = 189,729,048.42
  5. Step 5: Solve for x
    x = 189,729,048.42/15,552.30
  6. Step 6: Final answer
    x = 12,199.42

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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.