Home / 19,116.47-26,379.78-10,619.12

Finding the Fourth Proportional to 19,116.47, 26,379.78 and 10,619.12

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Solution

The fourth proportional to 19,116.47, 26,379.78 and 10,619.12 is: 14,653.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.47 : 26,379.78 = 10,619.12 : x
  2. Step 2: Convert to fraction form
    19,116.47/26,379.78 = 10,619.12/x
  3. Step 3: Cross multiply
    19,116.47x = 26,379.78 × 10,619.12
  4. Step 4: Simplify right side
    19,116.47x = 280,130,115.34
  5. Step 5: Solve for x
    x = 280,130,115.34/19,116.47
  6. Step 6: Final answer
    x = 14,653.87

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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.