Home / 18,222.51-25,138.47-10,664.16

Finding the Fourth Proportional to 18,222.51, 25,138.47 and 10,664.16

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Solution

The fourth proportional to 18,222.51, 25,138.47 and 10,664.16 is: 14,711.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,222.51 : 25,138.47 = 10,664.16 : x
  2. Step 2: Convert to fraction form
    18,222.51/25,138.47 = 10,664.16/x
  3. Step 3: Cross multiply
    18,222.51x = 25,138.47 × 10,664.16
  4. Step 4: Simplify right side
    18,222.51x = 268,080,666.24
  5. Step 5: Solve for x
    x = 268,080,666.24/18,222.51
  6. Step 6: Final answer
    x = 14,711.51

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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.