Home / 11,898.45-16,386.64-11,640.11

Finding the Fourth Proportional to 11,898.45, 16,386.64 and 11,640.11

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Solution

The fourth proportional to 11,898.45, 16,386.64 and 11,640.11 is: 16,030.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,898.45 : 16,386.64 = 11,640.11 : x
  2. Step 2: Convert to fraction form
    11,898.45/16,386.64 = 11,640.11/x
  3. Step 3: Cross multiply
    11,898.45x = 16,386.64 × 11,640.11
  4. Step 4: Simplify right side
    11,898.45x = 190,742,338.75
  5. Step 5: Solve for x
    x = 190,742,338.75/11,898.45
  6. Step 6: Final answer
    x = 16,030.86

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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.