Home / 16,898.81-23,320.90-9,345.39

Finding the Fourth Proportional to 16,898.81, 23,320.90 and 9,345.39

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Solution

The fourth proportional to 16,898.81, 23,320.90 and 9,345.39 is: 12,896.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,898.81 : 23,320.90 = 9,345.39 : x
  2. Step 2: Convert to fraction form
    16,898.81/23,320.90 = 9,345.39/x
  3. Step 3: Cross multiply
    16,898.81x = 23,320.90 × 9,345.39
  4. Step 4: Simplify right side
    16,898.81x = 217,942,777.31
  5. Step 5: Solve for x
    x = 217,942,777.31/16,898.81
  6. Step 6: Final answer
    x = 12,896.93

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Double scale
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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.