Home / 18,223.29-25,139.54-10,664.98

Finding the Fourth Proportional to 18,223.29, 25,139.54 and 10,664.98

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Solution

The fourth proportional to 18,223.29, 25,139.54 and 10,664.98 is: 14,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,223.29 : 25,139.54 = 10,664.98 : x
  2. Step 2: Convert to fraction form
    18,223.29/25,139.54 = 10,664.98/x
  3. Step 3: Cross multiply
    18,223.29x = 25,139.54 × 10,664.98
  4. Step 4: Simplify right side
    18,223.29x = 268,112,655.12
  5. Step 5: Solve for x
    x = 268,112,655.12/18,223.29
  6. Step 6: Final answer
    x = 14,712.64

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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.