Home / 19,130.58-26,386.08-11,172.36

Finding the Fourth Proportional to 19,130.58, 26,386.08 and 11,172.36

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Solution

The fourth proportional to 19,130.58, 26,386.08 and 11,172.36 is: 15,409.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.58 : 26,386.08 = 11,172.36 : x
  2. Step 2: Convert to fraction form
    19,130.58/26,386.08 = 11,172.36/x
  3. Step 3: Cross multiply
    19,130.58x = 26,386.08 × 11,172.36
  4. Step 4: Simplify right side
    19,130.58x = 294,794,784.75
  5. Step 5: Solve for x
    x = 294,794,784.75/19,130.58
  6. Step 6: Final answer
    x = 15,409.61

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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.