Home / 19,899.06-27,461.29-11,403.88

Finding the Fourth Proportional to 19,899.06, 27,461.29 and 11,403.88

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Solution

The fourth proportional to 19,899.06, 27,461.29 and 11,403.88 is: 15,737.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,899.06 : 27,461.29 = 11,403.88 : x
  2. Step 2: Convert to fraction form
    19,899.06/27,461.29 = 11,403.88/x
  3. Step 3: Cross multiply
    19,899.06x = 27,461.29 × 11,403.88
  4. Step 4: Simplify right side
    19,899.06x = 313,165,255.81
  5. Step 5: Solve for x
    x = 313,165,255.81/19,899.06
  6. Step 6: Final answer
    x = 15,737.69

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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.