Home / 12,655.54-18,985.69-6,333.80

Finding the Fourth Proportional to 12,655.54, 18,985.69 and 6,333.80

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Solution

The fourth proportional to 12,655.54, 18,985.69 and 6,333.80 is: 9,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,655.54 : 18,985.69 = 6,333.80 : x
  2. Step 2: Convert to fraction form
    12,655.54/18,985.69 = 6,333.80/x
  3. Step 3: Cross multiply
    12,655.54x = 18,985.69 × 6,333.80
  4. Step 4: Simplify right side
    12,655.54x = 120,251,476.31
  5. Step 5: Solve for x
    x = 120,251,476.31/12,655.54
  6. Step 6: Final answer
    x = 9,501.88

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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.