Home / 16,890.42-23,309.85-9,722.76

Finding the Fourth Proportional to 16,890.42, 23,309.85 and 9,722.76

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Solution

The fourth proportional to 16,890.42, 23,309.85 and 9,722.76 is: 13,418.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.42 : 23,309.85 = 9,722.76 : x
  2. Step 2: Convert to fraction form
    16,890.42/23,309.85 = 9,722.76/x
  3. Step 3: Cross multiply
    16,890.42x = 23,309.85 × 9,722.76
  4. Step 4: Simplify right side
    16,890.42x = 226,636,077.19
  5. Step 5: Solve for x
    x = 226,636,077.19/16,890.42
  6. Step 6: Final answer
    x = 13,418.02

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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.