Home / 11,985.60-17,962.20-9,798.60

Finding the Fourth Proportional to 11,985.60, 17,962.20 and 9,798.60

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Solution

The fourth proportional to 11,985.60, 17,962.20 and 9,798.60 is: 14,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.60 : 17,962.20 = 9,798.60 : x
  2. Step 2: Convert to fraction form
    11,985.60/17,962.20 = 9,798.60/x
  3. Step 3: Cross multiply
    11,985.60x = 17,962.20 × 9,798.60
  4. Step 4: Simplify right side
    11,985.60x = 176,004,412.92
  5. Step 5: Solve for x
    x = 176,004,412.92/11,985.60
  6. Step 6: Final answer
    x = 14,684.66

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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.