Home / 19,120.27-26,386.86-10,622.40

Finding the Fourth Proportional to 19,120.27, 26,386.86 and 10,622.40

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Solution

The fourth proportional to 19,120.27, 26,386.86 and 10,622.40 is: 14,659.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.27 : 26,386.86 = 10,622.40 : x
  2. Step 2: Convert to fraction form
    19,120.27/26,386.86 = 10,622.40/x
  3. Step 3: Cross multiply
    19,120.27x = 26,386.86 × 10,622.40
  4. Step 4: Simplify right side
    19,120.27x = 280,291,781.66
  5. Step 5: Solve for x
    x = 280,291,781.66/19,120.27
  6. Step 6: Final answer
    x = 14,659.41

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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.