Home / 18,639.00-25,708.54-11,459.51

Finding the Fourth Proportional to 18,639.00, 25,708.54 and 11,459.51

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Solution

The fourth proportional to 18,639.00, 25,708.54 and 11,459.51 is: 15,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.00 : 25,708.54 = 11,459.51 : x
  2. Step 2: Convert to fraction form
    18,639.00/25,708.54 = 11,459.51/x
  3. Step 3: Cross multiply
    18,639.00x = 25,708.54 × 11,459.51
  4. Step 4: Simplify right side
    18,639.00x = 294,607,085.38
  5. Step 5: Solve for x
    x = 294,607,085.38/18,639.00
  6. Step 6: Final answer
    x = 15,805.95

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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.