Home / 10,768.83-14,862.74-8,999.79

Finding the Fourth Proportional to 10,768.83, 14,862.74 and 8,999.79

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Solution

The fourth proportional to 10,768.83, 14,862.74 and 8,999.79 is: 12,421.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,768.83 : 14,862.74 = 8,999.79 : x
  2. Step 2: Convert to fraction form
    10,768.83/14,862.74 = 8,999.79/x
  3. Step 3: Cross multiply
    10,768.83x = 14,862.74 × 8,999.79
  4. Step 4: Simplify right side
    10,768.83x = 133,761,493.83
  5. Step 5: Solve for x
    x = 133,761,493.83/10,768.83
  6. Step 6: Final answer
    x = 12,421.17

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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.