Home / 18,272.07-25,212.75-10,715.55

Finding the Fourth Proportional to 18,272.07, 25,212.75 and 10,715.55

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Solution

The fourth proportional to 18,272.07, 25,212.75 and 10,715.55 is: 14,785.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.07 : 25,212.75 = 10,715.55 : x
  2. Step 2: Convert to fraction form
    18,272.07/25,212.75 = 10,715.55/x
  3. Step 3: Cross multiply
    18,272.07x = 25,212.75 × 10,715.55
  4. Step 4: Simplify right side
    18,272.07x = 270,168,483.26
  5. Step 5: Solve for x
    x = 270,168,483.26/18,272.07
  6. Step 6: Final answer
    x = 14,785.87

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Half scale
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Double scale
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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.