Home / 12,777.04-17,641.14-7,999.12

Finding the Fourth Proportional to 12,777.04, 17,641.14 and 7,999.12

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Solution

The fourth proportional to 12,777.04, 17,641.14 and 7,999.12 is: 11,044.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.04 : 17,641.14 = 7,999.12 : x
  2. Step 2: Convert to fraction form
    12,777.04/17,641.14 = 7,999.12/x
  3. Step 3: Cross multiply
    12,777.04x = 17,641.14 × 7,999.12
  4. Step 4: Simplify right side
    12,777.04x = 141,113,595.80
  5. Step 5: Solve for x
    x = 141,113,595.80/12,777.04
  6. Step 6: Final answer
    x = 11,044.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.