Home / 12,666.09-18,999.52-4,345.99

Finding the Fourth Proportional to 12,666.09, 18,999.52 and 4,345.99

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Solution

The fourth proportional to 12,666.09, 18,999.52 and 4,345.99 is: 6,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.09 : 18,999.52 = 4,345.99 : x
  2. Step 2: Convert to fraction form
    12,666.09/18,999.52 = 4,345.99/x
  3. Step 3: Cross multiply
    12,666.09x = 18,999.52 × 4,345.99
  4. Step 4: Simplify right side
    12,666.09x = 82,571,607.20
  5. Step 5: Solve for x
    x = 82,571,607.20/12,666.09
  6. Step 6: Final answer
    x = 6,519.11

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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.