Home / 16,670.80-23,005.60-9,218.80

Finding the Fourth Proportional to 16,670.80, 23,005.60 and 9,218.80

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Solution

The fourth proportional to 16,670.80, 23,005.60 and 9,218.80 is: 12,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,670.80 : 23,005.60 = 9,218.80 : x
  2. Step 2: Convert to fraction form
    16,670.80/23,005.60 = 9,218.80/x
  3. Step 3: Cross multiply
    16,670.80x = 23,005.60 × 9,218.80
  4. Step 4: Simplify right side
    16,670.80x = 212,084,025.28
  5. Step 5: Solve for x
    x = 212,084,025.28/16,670.80
  6. Step 6: Final answer
    x = 12,721.89

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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.