Home / 16,890.04-23,309.69-9,816

Finding the Fourth Proportional to 16,890.04, 23,309.69 and 9,816

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Solution

The fourth proportional to 16,890.04, 23,309.69 and 9,816 is: 13,546.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.04 : 23,309.69 = 9,816 : x
  2. Step 2: Convert to fraction form
    16,890.04/23,309.69 = 9,816/x
  3. Step 3: Cross multiply
    16,890.04x = 23,309.69 × 9,816
  4. Step 4: Simplify right side
    16,890.04x = 228,807,867.96
  5. Step 5: Solve for x
    x = 228,807,867.96/16,890.04
  6. Step 6: Final answer
    x = 13,546.91

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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.