Home / 19,210.55-26,513.10-11,655.68

Finding the Fourth Proportional to 19,210.55, 26,513.10 and 11,655.68

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Solution

The fourth proportional to 19,210.55, 26,513.10 and 11,655.68 is: 16,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.55 : 26,513.10 = 11,655.68 : x
  2. Step 2: Convert to fraction form
    19,210.55/26,513.10 = 11,655.68/x
  3. Step 3: Cross multiply
    19,210.55x = 26,513.10 × 11,655.68
  4. Step 4: Simplify right side
    19,210.55x = 309,028,076.84
  5. Step 5: Solve for x
    x = 309,028,076.84/19,210.55
  6. Step 6: Final answer
    x = 16,086.38

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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.