Home / 12,557.13-18,822.54-4,234.28

Finding the Fourth Proportional to 12,557.13, 18,822.54 and 4,234.28

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Solution

The fourth proportional to 12,557.13, 18,822.54 and 4,234.28 is: 6,346.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.13 : 18,822.54 = 4,234.28 : x
  2. Step 2: Convert to fraction form
    12,557.13/18,822.54 = 4,234.28/x
  3. Step 3: Cross multiply
    12,557.13x = 18,822.54 × 4,234.28
  4. Step 4: Simplify right side
    12,557.13x = 79,699,904.67
  5. Step 5: Solve for x
    x = 79,699,904.67/12,557.13
  6. Step 6: Final answer
    x = 6,346.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.