Home / 16,660.89-22,991.33-9,859.32

Finding the Fourth Proportional to 16,660.89, 22,991.33 and 9,859.32

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Solution

The fourth proportional to 16,660.89, 22,991.33 and 9,859.32 is: 13,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,660.89 : 22,991.33 = 9,859.32 : x
  2. Step 2: Convert to fraction form
    16,660.89/22,991.33 = 9,859.32/x
  3. Step 3: Cross multiply
    16,660.89x = 22,991.33 × 9,859.32
  4. Step 4: Simplify right side
    16,660.89x = 226,678,904.34
  5. Step 5: Solve for x
    x = 226,678,904.34/16,660.89
  6. Step 6: Final answer
    x = 13,605.45

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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.