Home / 18,275.66-25,225.69-10,722.31

Finding the Fourth Proportional to 18,275.66, 25,225.69 and 10,722.31

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Solution

The fourth proportional to 18,275.66, 25,225.69 and 10,722.31 is: 14,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.66 : 25,225.69 = 10,722.31 : x
  2. Step 2: Convert to fraction form
    18,275.66/25,225.69 = 10,722.31/x
  3. Step 3: Cross multiply
    18,275.66x = 25,225.69 × 10,722.31
  4. Step 4: Simplify right side
    18,275.66x = 270,477,668.14
  5. Step 5: Solve for x
    x = 270,477,668.14/18,275.66
  6. Step 6: Final answer
    x = 14,799.89

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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.