Home / 11,848.40-16,350.70-7,131.68

Finding the Fourth Proportional to 11,848.40, 16,350.70 and 7,131.68

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Solution

The fourth proportional to 11,848.40, 16,350.70 and 7,131.68 is: 9,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,848.40 : 16,350.70 = 7,131.68 : x
  2. Step 2: Convert to fraction form
    11,848.40/16,350.70 = 7,131.68/x
  3. Step 3: Cross multiply
    11,848.40x = 16,350.70 × 7,131.68
  4. Step 4: Simplify right side
    11,848.40x = 116,607,960.18
  5. Step 5: Solve for x
    x = 116,607,960.18/11,848.40
  6. Step 6: Final answer
    x = 9,841.66

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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.