Home / 11,678.03-16,116.04-6,642.98

Finding the Fourth Proportional to 11,678.03, 16,116.04 and 6,642.98

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Solution

The fourth proportional to 11,678.03, 16,116.04 and 6,642.98 is: 9,167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.03 : 16,116.04 = 6,642.98 : x
  2. Step 2: Convert to fraction form
    11,678.03/16,116.04 = 6,642.98/x
  3. Step 3: Cross multiply
    11,678.03x = 16,116.04 × 6,642.98
  4. Step 4: Simplify right side
    11,678.03x = 107,058,531.40
  5. Step 5: Solve for x
    x = 107,058,531.40/11,678.03
  6. Step 6: Final answer
    x = 9,167.52

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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.