Home / 19,508.16-26,921.21-10,555.66

Finding the Fourth Proportional to 19,508.16, 26,921.21 and 10,555.66

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Solution

The fourth proportional to 19,508.16, 26,921.21 and 10,555.66 is: 14,566.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,508.16 : 26,921.21 = 10,555.66 : x
  2. Step 2: Convert to fraction form
    19,508.16/26,921.21 = 10,555.66/x
  3. Step 3: Cross multiply
    19,508.16x = 26,921.21 × 10,555.66
  4. Step 4: Simplify right side
    19,508.16x = 284,171,139.55
  5. Step 5: Solve for x
    x = 284,171,139.55/19,508.16
  6. Step 6: Final answer
    x = 14,566.78

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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.