Home / 12,669.89-19,008.14-4,772.48

Finding the Fourth Proportional to 12,669.89, 19,008.14 and 4,772.48

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Solution

The fourth proportional to 12,669.89, 19,008.14 and 4,772.48 is: 7,159.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.89 : 19,008.14 = 4,772.48 : x
  2. Step 2: Convert to fraction form
    12,669.89/19,008.14 = 4,772.48/x
  3. Step 3: Cross multiply
    12,669.89x = 19,008.14 × 4,772.48
  4. Step 4: Simplify right side
    12,669.89x = 90,715,849.08
  5. Step 5: Solve for x
    x = 90,715,849.08/12,669.89
  6. Step 6: Final answer
    x = 7,159.96

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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.