Home / 12,830.54-19,245.80-9,342.74

Finding the Fourth Proportional to 12,830.54, 19,245.80 and 9,342.74

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Solution

The fourth proportional to 12,830.54, 19,245.80 and 9,342.74 is: 14,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,830.54 : 19,245.80 = 9,342.74 : x
  2. Step 2: Convert to fraction form
    12,830.54/19,245.80 = 9,342.74/x
  3. Step 3: Cross multiply
    12,830.54x = 19,245.80 × 9,342.74
  4. Step 4: Simplify right side
    12,830.54x = 179,808,505.49
  5. Step 5: Solve for x
    x = 179,808,505.49/12,830.54
  6. Step 6: Final answer
    x = 14,014.10

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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.