Home / 12,321.30-18,493.55-6,482.10

Finding the Fourth Proportional to 12,321.30, 18,493.55 and 6,482.10

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Solution

The fourth proportional to 12,321.30, 18,493.55 and 6,482.10 is: 9,729.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.30 : 18,493.55 = 6,482.10 : x
  2. Step 2: Convert to fraction form
    12,321.30/18,493.55 = 6,482.10/x
  3. Step 3: Cross multiply
    12,321.30x = 18,493.55 × 6,482.10
  4. Step 4: Simplify right side
    12,321.30x = 119,877,040.46
  5. Step 5: Solve for x
    x = 119,877,040.46/12,321.30
  6. Step 6: Final answer
    x = 9,729.25

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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.